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There are the mainstream headphones for your average consumers, and there are the high-fidelity headphones for the audiophiles in all of us. Headphone amplifiers are often required by these high-end and expensive headphones to truly unlock their potential and deliver the best of the best in sound quality to the ears. Read on below to find out about these headphone amplifiers.

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FiiO A1 Portable Headphone Amplifier at 276.00 HKD from TREOO.com
FiiO A1 Portable Headphone Amplifier
HK$ 276.00
TREOO.com
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FiiO A3 Portable Headphone Amplifier - Black at 501.00 HKD from TREOO.com
FiiO A3 Portable Headphone Amplifier - Black
HK$ 501.00
TREOO.com
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Power Schiit Audio Lyr 2 High Tube Hybrid Desktop Headphone Amplifier at 3933.00 HKD from TREOO.com
Power Schiit Audio Lyr 2 High Tube Hybrid Desktop Headphone Amplifier
HK$ 3,933.00
TREOO.com
Lyr 2 is the next generation of one of the most popular high-power headphone amps, with added versatility and convenience. It’s a complete control center for your desktop system, with preamp outputs for powered desktop speakers, as well as a gain switch for use with virtually any headphone. Completely Redesigned for Flexibility We completely reworked Lyr 2 to make it an even higher-performing, more flexible amp. We added a gain switch so you can now use efficient headphones (and even many IEMs.) We've also cut the noise with a new regulated high-voltage supply and DC regulated heaters. A refined Dynamically Adaptive output stage transitions seamlessly from Class A to Class AB, for excellent overall efficiency. From Iems and Orthos to Active Monitors Lyr 2 offers two gain settings. The gain of 1 is good for most sensitive headphones, including efficient on-ear models and many IEMs, while the gain of 8 is ideal for inefficient orthodynamics and high-impedance headphones. In addition, the preamp outputs can easily be connected to powered speakers, for a complete desktop system. Roll Your Own Sound Like Lyr, Lyr 2 lets you "roll" many different tube types to your own preference. Use 6Bz7, 6Dj8, 6922, Ecc88, 2492, and many other tube types to get your perfect sound. Made in USA By “made in Usa;” we mean made in Usa. The vast majority of the total production cost of Lyr 2—chassis; boards, transformers, assembly, etc—goes to US companies manufacturing in the US. Our board house is 20 minutes away from our office in Newhall. Our chassis guys are just over the hill in the Valley. 5-Year Warranty Lyr 2 is covered by a limited warranty that covers parts and labor for five years. That’s 5 years. Yes. Five. Which is up to 5X that of our competition, if you weren’t so hot at math. Note the marketing weasel-wording “up to.” One exception: the tubes. Those we cover for 3 months.
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 Schiit Audio Valhalla 2 Desktop Headphone Amplifier at 3089.00 HKD from TREOO.com
Schiit Audio Valhalla 2 Desktop Headphone Amplifier
HK$ 3,089.00
TREOO.com
Go ahead. Do things with Valhalla 2 that you’d never attempt with other OTL tube amps. Run low-impedance headphones. Use IEMs. Valhalla 2 is a complete re-imagining of Valhalla, with improved performance, higher output capability, lower distortion and output impedance. Tubes Made Flexible While most tube OTL amps are really only designed for 300 ohm Senns and 600 ohm Beyers, Valhalla 2 stretches to include headphones that you’d never expect to use with a tube amp. Go ahead. Use it with Grados. Run it with AKGs. Rely on it for many IEMs. You may even like it with high-efficiency planars like Lcd-X, Lcd-Xc, Oppo Pm-1 and He-400. A Complete Desktop Preamp Valhalla 2 also adds two important features: preamp outs and a gain switch. Preamp outs let you connect your powered monitors directly to Valhalla 2, to give them some of what some people call “tube magic.” The gain switch gives you better control of both output level and impedance, for better matching to your headphones. It's easy to build a complete desktop system around the Valhalla. Not Your Father’s Tube Amp If you’re expecting syrupy, tubby, euphonically colored tube sound, you’re in for a shock. Valhalla 2 is exceptionally accurate, neutral, and resolving, without being strident or etched. Made in USA By “made in Usa;” we mean made in Usa. The vast majority of the total production cost of Asgard 2—chassis; boards, transformers, assembly, etc—goes to US companies manufacturing in the US. Our board house is 20 minutes away from our office in Newhall. Our chassis guys are just over the hill in the Valley. 5-Year Warranty Asgard 2 is covered by a limited warranty that covers parts and labor for five years. That’s 5 years. Yes. Five. Which is up to 5X that of our competition, if you weren’t so hot at math. Note the marketing weasel-wording “up to.”
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Beyerdynamic A2 Desktop Headphone Amplifier at 15183.00 HKD from TREOO.com
Beyerdynamic A2 Desktop Headphone Amplifier
HK$ 15,183.00
TREOO.com
A Sound TO Rave About With its powerful and lively response, the A2 brings out the best performances from all dynamic headphones and supplies an excellent reproduction quality that is as close as possible to the original sound: From highs with a brilliant resolution and absolutely authentic mid-range to a deep, natural bass. Amazingly noise-free operation and precise control can be enjoyed via all headphones that are connected, regardless of their impedance. Fully Discrete AND Adjustable Selected, hand-assembled components and the discrete circuit design open up a richness of detail that is hard to beat. Due to the two headphone outputs, two people can enjoy their favourite music together and the sophisticated, intuitive operation of the A 2 fills with enthusiasm. Applications such as the volume can be precisely and infinitely adjusted via the convenient remote control. As a special highlight, the A2 is currently the only device on the market that provides separate adjustments for the impedance and sensitivity of the connected headphones as well as different levels of the audio sources. This means that headphones between 16 ohms and 600 ohms can be operated perfectly on the A 2 without distortion occurring at high levels. With the voltage selector switch the supply voltage can be adjusted to 110 - 120 V or 220 - 240 V, which allows the device to be used worldwide. Sophisticated Industrial Design Like its little brother, the A 20, the A 2 top-of-the-line model is based on a clearly structured, elegant design with smooth rounded housing edges without visible joints, screws or rivets made of anodised aluminium. Another special eye-catcher is the transparent charcoal-coloured glass panel, which is flush with the top surface, enabling you to look through the famous beyerdynamic sound-wave logo into the interior of the A2. LEDs spectacularly illuminate the circuit board in a warm light. Each A 2 is supplied with an extraordinary accessory, a rugged headphone stand made of aluminium. When it is attached to the device, it serves as a practical storage solution for the headphone keeping it ready at all times hanging over the device.
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Cayin C5 Portable Headphone Amplifier at 1345.00 HKD from TREOO.com
Cayin C5 Portable Headphone Amplifier
HK$ 1,345.00
TREOO.com
Beautiful. Natural. Three-dimensional. Lush. Holographic. Powerful. Detailed. These are just some of the words audiophiles around the world are using to describe the Cayin C5 Portable Headphone Amplifier. Packed inside its compact and elegant aluminum shell you’ll find dedicated high-performance audio components including an Opa134 amp and Lme49600 buffer, a Japanese precision Alps volume pot, Fujitsu’s premium hi-fi relay, German Wima capacitors, a Texas Instruments hi-fi headphone power driver, and a perfect protection circuit for fully-protected, noiseless audiophile-grade power suitable for driving the most sensitive IEMs and some of the most power hungry full-size reference headphones. The Cayin C5 is a portable powerhouse, literally. With its rated 12-hour battery life, you'll have enough juice to last you through the day. Plus, it doubles as a power supply to boost or charge your other micro-USB devices with the included Micro-USB to USB 2.0 cable! If you’re looking for versatility (hi- and low-gain settings), meaty low end (bass boost switch) and balanced highs, and an amp that promises reference-level performance at an entry-level price, look no further than the incredibly detailed, smooth and enveloping performance of the Cayin C5 Portable Headphone Amplifier; it’s the only companion you’ll need for your on-the-go listening needs.
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 Schiit Audio Vali 2 Desktop Headphone Amplifier at 1964.00 HKD from TREOO.com
Schiit Audio Vali 2 Desktop Headphone Amplifier
HK$ 1,964.00
TREOO.com
Welcome to the most affordable serious tube hybrid amp on the planet—with performance and versatility that eclipse amps costing much, much more. The all-new Vali 2 is a great way to get started with tube sound, without needing a second mortgage! The Most Serious Tube Design—Far Beyond its Price Some inexpensive (and not-so-inexpensive) tube amps don’t use tubes to their full potential, “starving” them with low plate voltages or using op-amp buffers for output. Not Vali 2. Vali 2 uses a unique, class-leading power supply that gives us 60V on the plate. Combined with a fully discrete, current-mode noninverting hybrid topology, Vali 2 redefines what you can expect from an affordable tube amp, even at 2x its price. Roll Your Own Sound Vali 2 is supplied with a single NOS 6Bz7 tube, which can be swapped for the same tubes we use in Lyr 2 and Mjolnir 2—feel free to use virtually any Ecc88, 6922, 6Dj8, 2492, etc to “roll” the sound to your own preference. Plus, you only need a single tube, so rolling is easy and more affordable! Serious Power, Gain Switching, Preamp Outputs Vali delivers 1W into 32 ohms for hard-to-drive headphones—and; at the same time, offers a low gain mode for low-noise performance with sensitive headphones. You can also use the preamp outputs to add a tube preamp to your power amp or powered monitors. Made in Usa. Really. By “made in Usa;” we mean made in Usa. The vast majority of the total production cost of Vali 2—chassis; boards, assembly, etc—goes to US companies manufacturing in the US. Our board house is 20 minutes away from our office in Newhall. Our chassis guys are just over the hill in the Valley. Yep, the wall wart is from China, but there you go. There is some give and take to reach this price point.
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NuForce Hap-100 Desktop Headphone Amplifier - Black at 4495.00 HKD from TREOO.com
NuForce Hap-100 Desktop Headphone Amplifier - Black
HK$ 4,495.00
TREOO.com
The Hap-100 is a preamp and headphone amplifier for the audio enthusiast for whom quality headphone listening is a priority. The HAP-100's innovative design offers features never before available at its modest price point. Most significantly, the Hap-100 shares technologies first employed in our flagship P-20 preamp, along with other audiophile-grade developments. As with the remarkable P-20, the Hap-100 exploits NuForce's most recent work in volume controls. At the unit's core is a switched-resistor ladder network of low-noise, thin-film resistors, one per volume setting, permitting discrete, high-resolution increments of 1dB for the HAP-100's one hundred volume steps.
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 Schiit Audio Magni 2 Desktop Headphone Amplifier at 1907.00 HKD from TREOO.com
Schiit Audio Magni 2 Desktop Headphone Amplifier
HK$ 1,907.00
TREOO.com
Magni 2 builds on the performance of Magni, with even more refined sound and versatility, while Magni 2 Uber is now a complete desktop control center with preamp capability and even more power. Ready For Any Headphone The Magni 2 is ready for any headphone, from IEMs to hard-to-drive orthodynamics. Switchable gain provides the fine control and low noise floor you need for sensitive headphones, as well as the power you need for hard-to-drive high-impedance headphones and orthos. Even Better Sound and Performance Magni 2 is a newly refined, fully discrete, constant-feedback gain stage. It may sound like engineering but it’s important. Not only is the Magni 2 the only fully-discrete amps in their price class, they also use a new gain stage with constant feedback across the entire audio band. No op-amp can claim to do this. In addition, Magni 2 Uber’s gain stage is even more sophisticated, for higher performance. Both are fully DC coupled, with no capacitors in the signal path. A Complete Desktop Control Center: Magni 2 Uber If you need preamp outputs for powered desktop monitors (or for connecting to any power amplifier), or if you want even more power and performance, step up to Magni 2 Uber. With a more sophisticated gain stage and 3x larger power supply, it delivers power and performance far beyond anything at its price. Made in USA By “made in Usa;” we mean made in Usa. The vast majority of the total production cost of Magni 2 —chassis; boards, assembly, etc—goes to US companies manufacturing in the US. Our board house is 20 minutes away from our office, and our chassis guys are just over the hill in the Valley. Yep, the wall warts are from China, but there you go. There is some give and take to reach this price point. 2-Year Warranty Magni 2 is covered by a limited warranty that covers parts and labor for two years. That’s 2x the coverage of most amps in this price range.
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 Lehmann Audio Linear Desktop Headphone Amplifier - Black at 7313.00 HKD from TREOO.com
Lehmann Audio Linear Desktop Headphone Amplifier - Black
HK$ 7,313.00
TREOO.com
Already since 2004 the Linear has made all common headphones to shine at their very best. Extremely demanding users rely on our top model, from the West German Broadcasting Corporation to the audiophile Tacet label to Sennheiser's and AKG's headphone experts. It’s not without reason that the Linear belongs to the reference class in its genre. When you put on your headphones and load your favourite CD, the Linear will give rise to wonderful worlds before your mind’s eye. Physical, punchy lows and a delicate resolution reveal your favourite tracks in all their glory over the entire frequency bandwidth. Carefully selected components and an extremely sophisticated circuit design establish the foundation of our number on. "The best we've come across." — What Hi-Fi A universal champion With three gain settings it gives you an impressive listening pleasure, keeping an eye on your needs anytime – and this using a vast array of headphones on the most diverse sound sources. In this context we have, of course, taken into account the varying performance requirements and sensitivity levels of the headphone types currently available on the market. If you would like to share your joy at this quality of music reproduction with family and friends, our multiple test winner will be happy to feed two headphones at the same time. Of course, the listening enjoyment will remain equally fabulous then. The two parallel outputs of the discrete class A solid-state output stage.provide the basis of this double musical enjoyment. A propos: if you wish so, the Linear will also stimulate your active speakers to a stunning vitality. In every situation a magnificent sound, always striving for perfection – such is our Linear.
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 Lear Fsm-02V2 Portable Headphone Amplifier - Black at 3370.00 HKD from TREOO.com
Lear Fsm-02V2 Portable Headphone Amplifier - Black
HK$ 3,370.00
TREOO.com
Lear Fsm-02V2 is an integrated high-fidelity grade headphone amplifier with flexible and outstanding functions! Fsm-02V2 is built with a total of 2 stage amplification circuits, plus an individual Mosfet Class-A channel; They are the individual hardware EQ (Equalizer) plus individual power amplification and the individual switchable Mosfet Class-A output stage. Each of the EQ and power amplification circuit has a 3 step control, which can be used to select the Crystal clear high, completely Bypass or powerful bass sound style and also the Low, Mid or High Gain for perfect matching with different impedance earphones and headphones. The Mosfet Class-A channel is switchable with the 3 step On/Off switch and output directly from an individual 3.5mm headphone jack. There are no OPAMPs or fixed circuit design which can work perfectly with all headphones, so we made the Fsm-02V2 to become Opamp exchangeable plus amplifier module exchangeable, it lets you to make your own choice of OPAMPs or fined tuned module selection , they give the best performance for any of your gears! The exchangeable power amplification stage means you can exchange Lear or 3rd party designed and made module (it can be an special tuned parallel Opamp module with own gain stage or the sound enhancement effect module ...etc.)to achieve their special goals! Fsm-02V2 supports an external power supply from Dc5V~18V, so it can easily become one of your high quality desktop amplifier, and also the built in Li-Poly rechargeable battery can be charged via USB and work at the same time! At least 6 different sound style inside 1 machine when using with any headphones (There are 2 EQ+Bypass for both Phone out and independent Class-A out) OPAMPs (1 for EQ stage , 1 for output amplification and 1 for Class-A) are exchangeable.Amplifier module is user exchangeable (Announced later on http://lear.hk),replace by Lear or 3rd party design! 3 step (Lo/Mi/Hi) Gain control for the best matching with both low and high impedance earphones/headphones. Independent Mosfet Class-A output for enjoy the "Tube Amp" sound at the independent 3.5mm output jack(Normal output and Class-A output are separated to 2 independent 3.5mm headphone jack and which is on/off selectable via a 3 step switch) Built in 3000mAh Li-poly rechargeable battery and charging via standard USB or Dc5V USB adapter. Support External power supply form Dc5V to 18V (Regulated power supply is recommended), simply change the Fsm-02V2 to a desktop grade amplifier. Optional Ultra Performance Module upgrade is available. Features of the UPM upgrade: 4 times output power than factory default. No more power hunger. Overall performance is almost reaching to the physical limit. Still near Zero Output Impedance. Drive any earphones/headphones to their original sound Reliable partner and reference source to the earphones/headphones R&D engineer. We used to R&D LEAR's earphones. Plug and Play design, no DIY technique required.
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 Schiit Audio Asgard 2 Desktop Headphone Amplifier at 2526.00 HKD from TREOO.com
Schiit Audio Asgard 2 Desktop Headphone Amplifier
HK$ 2,526.00
TREOO.com
Asgard 2 is the next generation of one of the most popular headphone amps in the world, boasting higher performance and convenience features such as switchable gain and preamp outputs. It’s a versatile control center for your desktop system, ideal for most headphones from IEMs to orthos, and with pre outs for powered desktop speakers. Significantly Improved Performance We used what we learned in Mjolnir to significantly improve Asgard 2’s performance. A high-voltage, cascoded Jfet gain stage feeds a high-current Class A Mosfet output section. The 80V rails on the gain stage allow us to reduce distortion, while retaining Asgard’s no-overall-feedback design in high-gain mode. Additional Versatility: From IEMs to Orthos to Active Monitors Asgard 2 offers two gain settings. The low-gain mode is perfect for high-sensitivity IEMs, while the high-gain mode is ideal for most other headphones, up to and including many orthodynamics. In addition, the preamp outputs can easily be connected to powered speakers, for a complete desktop system. Made in USA By “made in Usa;” we mean made in Usa. The vast majority of the total production cost of Asgard 2—chassis; boards, transformers, assembly, etc—goes to US companies manufacturing in the US. Our board house is 20 minutes away from our office in Newhall. Our chassis guys are just over the hill in the Valley. 5-Year Warranty Asgard 2 is covered by a limited warranty that covers parts and labor for five years. That’s 5 years. Yes. Five. Which is up to 5X that of our competition, if you weren’t so hot at math. Note the marketing weasel-wording “up to.”
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 Questyle Audio Cma800R Desktop Headphone Amplifier at 16871.00 HKD from TREOO.com
Questyle Audio Cma800R Desktop Headphone Amplifier
HK$ 16,871.00
TREOO.com
Hear your music for the first time! Questyle Audio’s outstanding "Current Mode Amplification" technology (subject to a PCT patent held by and the core technology designed and developed by, Questyle Audio CEO and founder Wang Fengshuo) provides the airiness and musicality of a tube amp while maintaining the speed and accuracy of transistors. What is Current Mode Amplification? In current mode amplification, the signal is amplified by modulating current instead of Voltage. It is widely applied in the high speed communication industry and the video processing industry, but it is Questyle Audio’s patented technology as applied to headphone amplifiers. Why We Choose Current Mode Amplification? Low distortion and wide bandwidth are the goals of all high performance amplifiers. Only with ultra wide bandwidth and high speed processing can an amplifier wonderfully process sudden pulse wave signals, and achieve realistic playback of music signal with speed and transparency. To achieve this Questyle Audio abandoned the traditional voltage mode format and developed “Current Mode” amplification. When the component is working in Current mode, the amplifier Slew Rate (Sr) achieves a linear increase as input signal amplitude increases, in direct proportion to the input signal amplitude. When receiving a high amplitude signal, a “Current Mode” amplifier’s SR is much faster than traditional Voltage mode devices, totally eliminating Timd and ensuring a high amplitude signal with an extremely wide linear bandwidth and an almost distortion free realistic playback. An Excellent Headphone Amplifier with Outstanding Performance Specifications 10mm Thick Aluminium Cover and Bottom Chassis The Questyle Audio CMA800R’s aluminum chassis is produced by Foxconn using precise CNC tooling machines. The upper cover and bottom chassis “mutual bit” structural design, provides the Questyle Audio Cma800R with stable heat, excellent control of sympathetic vibration and excellent shielding from Rfi/emi radiation. Mono Full Balanced Function The Questyle Audio Cma800R is the world first headphone amplifier to offer Mono Full Balanced output. To create a proper balanced output, a stereo amp is required for each channel. Rather than compromise by using a transformer or resistors, Questyle takes advantage of this by allowing you to switch two Questyle Audio CMA800Rs into “Mono” mode, putting each one into a “Mono Full Balanced” configuration, effectively bridging them in a “Duel Mono” set up. The output power is four times that of a single Questyle Audio Cma800R, separately driving the left and right channels, with an ultra-low 0.00038% distortion, and unparalleled channel separation, able to drive high impedance and low sensitivity headphones deeply, improving resolution and dynamics. In this Dual Mono configuration, each channel’s power supply and amplification are independent, providing first class driving power, which is especially outstanding in driving difficult to drive headphones or headphones which lack in sound field or separation.
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Audio-Technica At-Ha26D Headphone Amplifier at 1958.00 HKD from TREOO.com
Audio-Technica At-Ha26D Headphone Amplifier
HK$ 1,958.00
TREOO.com
- 24bit / high-performance D / A converter that can support 192kHz (Ak4396). - High-quality optical digital input equipment corresponding to 192kHz. -Equipped with line output, can also be used as a high-quality D / A converter. - Ridgid aluminium alloy body to prevent any vibrations.
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FiiO A5 Portable Headphone Amplifier - Titanium at 1120.00 HKD from TREOO.com
FiiO A5 Portable Headphone Amplifier - Titanium
HK$ 1,120.00
TREOO.com
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Teac Ha-501 Desktop Headphone Amplifier - Black at 5620.00 HKD from TREOO.com
Teac Ha-501 Desktop Headphone Amplifier - Black
HK$ 5,620.00
TREOO.com
Introduce yourself to TEAC’s Ha-501, a fully analog, dual monaural headphone amplifier with elegance. Part of the 501 series, this Class-A amplifier delivers superior sound quality, a sleek, modern look, all encased in a rugged but compact design. The Ha-501 supplies regular headphone listeners with quality sound, features and adaptable options that cannot be found in regular amplifiers. Pair it with your favorite headphones the same way you would a normal amp with favored speakers and take advantage of DC Servo Technology, Switchable damping Factors, High Output Power, a large Toroidal-Core Power Transformer and relax to your favorite music or radio broadcast. A headphone amplifier to achieve peak headphone performance In general, a headphone output from conventional hi-fi components does not allow even high-quality headphones to perform at their peak potential. The same way one chooses an amplifier to match with your favorite speakers, it is very impotant to chosse an appropriate headphone amplifier that matches your favorite headphones. A headphone amplifier is a "must-have" listening device for audiophiles. Active DC Servo Technology for decreased distortion, and discrete Class-A Amplifier In order to develop a first-class low distotion Class-A headphone amplifier, Teac held a series of sound evalutions during the development. These tests led to the careful choosing of parts and descrete circuit design. In addition, like most full-size hi-fi components, in order to eliminate Offset Electrical Potential, Active DC Servo Technology is utilized. Dual Monaural Design that eliminates interference between Left and Right channels In regards to the circuit design, each channel is completely designed on an individual basis to avoid signal interface to/from another. This contribution eliminates cross-talk, crucial headphone listening. Muses8920 Op-Amps - for high-end quality Muses8920 Op-Amp chip-sets are designed for high-end audio. Employed individually on the Left and Right channels, they help achieve superior sound. This Op-amp performs superb IV-conversion and is already very well regarded and used in a wide-range of hi-fi components. Large Toroidal-core Power Transformer An over-sized Toroidal-core power transformer is also employed to supply stable current to the every part of the circuit. Damping Factor Selector to optimize headphones' characteristic Each pair of headphones has its Damping Factor, a resisting force against non-intentional movement of the diaphram moving air forwards and backwords as sound. The value of the Damping Factor varies model by model, as diaphrams are made by different materials, in different shapes or different construction designs. Since headphones' diaphrams are activated by a very small current compared to conventional speakers, the damping factor increases, the sound is lean and crisp, and has a close relationship with headphones' impedance. Therefore, selecting the right Damping Factor is crucial in order for your headphones to perform at their peak potential. The Ha-501 provides 5 selectable Damping Factors, so users have the best suited signal for multiple headphones. Total 2,800mA of output power drives your high impedance headphones The Ha-501 schieves a remarkable 1,400mW output power per channel at 32 ohms impedance. The divice delivers not only enough power to drive standard headphones with an impedance range from 80 to 250 ohms, but also high-class 600 ohms hi-fi headphones. Robust Aluminum Body with a Classy Appearance Re-defining high class hi-fi components, the Ha-501 has a small footprint, classy appearance and is constructed with aluminum panels to create an authentic but modern looking hi-fi component. A robust metal construction helps eliminate vibrations that may affect the sound quality. The bottom and sidewalls are formed with a steel chassis, aluminum for the front panel and the rear panel out of steel. In order to ensure it's rugged design, each panel is connected with a beam that runs through the center of the unit. Normally, this type of construction is only for full-size components, particularly CD players that generate inherent motor vibrations. This construction ensures the Ha-501 is an authentic hi-fi component that will last you for many years. Choose between a handsome black version and a brilliant silver version to match with any interior or design. Well-designed User Interface Another remarkable feature of the Ha-501 is the user-friendly design. The firm-torqued volume control allows users to adjust the volume level with ease and precision while the toggle-type power switch assures On/off operation at a glance. Auto-muting function protects your ears from unexpected loud sounds when switching between headphones with different levels of impedance. Professional grade Input/Output connectors On the rear panel, a pair of Neutrik brand XLR input connectors allow users to connect high-end components or professional audio equipment, while wider-pitch RCA pin jacks allow user to connect large-shaft RCA pin cables from other markets. A detachale type 3-polar power inlet socket is also avalable. On the front, a 3.5mm stereo mini-jack allows users to connect a portable music player such as an iPod, conveniently. Switchable Output Mode for flexibility Line output level from the rear panel can be swiched amongst "Fixed Level", "Variable Level (coupled with volume)" and "Off".
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 Heir Audio Rendition 1 Portable Headphone Amplifier - Black at 2808.00 HKD from TREOO.com
Heir Audio Rendition 1 Portable Headphone Amplifier - Black
HK$ 2,808.00
TREOO.com
Heir Audio is very pleased to launch our first portable amplifier, Rendition 1, worldwide. After a full year research and development, our engineers have designed a unique personal amplifier with excellent sound quality supported by a long lasting battery. Just like our any other products, Rendition 1 carries the Heir Audio signature of exquisite design concept with the delicate black carbon fiber on the both sides. Rendition 1 has further expanded our product line and once again reinforced our belief that each one of our products is a unique acoustical and artistic expression of the beauty of music! The successful preorders have approved the acceptance of this wonderful amplifier! The Rendition 1 is an exciting portable amp, that in keeping with Heir Audio tradition, sounds as good as it looks, and looks as good as it sounds. The sound quality can be described as “black” (quite) or without back ground hiss. The concept behind the amp was to add more “depth” and “control” to the music, rather than adding colouration. If bass is present in the music, the amp is there, waiting to add more depth; if there are highs in the music, the amp delivers those as well cleanly and clearly. The Rendition 1 is available in two case colours, black or silver, accented with black carbon fiber, rendering a look of unsurpassed class.
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FiiO G01 Guitar Headphone Amplifier at 276.00 HKD from TREOO.com
FiiO G01 Guitar Headphone Amplifier
HK$ 276.00
TREOO.com
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Cayin HA-2i Desktop Headphone Amplifier at 1457.00 HKD from TREOO.com
Cayin HA-2i Desktop Headphone Amplifier
HK$ 1,457.00
TREOO.com
Improved upon the Ha-2, the HA-2i features a much smaller footprint but even better performance than before. Driving high impedence headphones with ease, the HA-2i is crafted to pair beautifully with popular cans like the Hd600, Hd650, K701, even orthodynamic headphones wouldn't be an issue as well.
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 Lehmann Audio Linear Desktop Headphone Amplifier - Silver at 7313.00 HKD from TREOO.com
Lehmann Audio Linear Desktop Headphone Amplifier - Silver
HK$ 7,313.00
TREOO.com
Already since 2004 the Linear has made all common headphones to shine at their very best. Extremely demanding users rely on our top model, from the West German Broadcasting Corporation to the audiophile Tacet label to Sennheiser's and AKG's headphone experts. It’s not without reason that the Linear belongs to the reference class in its genre. When you put on your headphones and load your favourite CD, the Linear will give rise to wonderful worlds before your mind’s eye. Physical, punchy lows and a delicate resolution reveal your favourite tracks in all their glory over the entire frequency bandwidth. Carefully selected components and an extremely sophisticated circuit design establish the foundation of our number on. "The best we've come across." — What Hi-Fi A universal champion With three gain settings it gives you an impressive listening pleasure, keeping an eye on your needs anytime – and this using a vast array of headphones on the most diverse sound sources. In this context we have, of course, taken into account the varying performance requirements and sensitivity levels of the headphone types currently available on the market. If you would like to share your joy at this quality of music reproduction with family and friends, our multiple test winner will be happy to feed two headphones at the same time. Of course, the listening enjoyment will remain equally fabulous then. The two parallel outputs of the discrete class A solid-state output stage.provide the basis of this double musical enjoyment. A propos: if you wish so, the Linear will also stimulate your active speakers to a stunning vitality. In every situation a magnificent sound, always striving for perfection – such is our Linear.
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 Headphone + Amplifier Discount Bundle at 57.00 HKD from TREOO.com
Headphone + Amplifier Discount Bundle
HK$ 57.00
TREOO.com
Customise your own headphone and amplifier bundle with TREOO.com, because we know you are often looking out for the best audio promotions out there. We can now guarantee you the best prices with these highly customisable bundle deals! Simply select your preferred combo, add to cart then checkout, and we're off to get them delivered to you. Notice: Due to foreseen overwhelming demand of products through our combo bundles, certain products may be temporarily out of stock. But it will be always worth the wait when that happens. Just hang in there, and we'll deliver as soon as the products are restocked. Why does it start from S$10? A service charge is required for us to bring you such unbeatable bundle discounts. Can't Find Your Perfect Match?
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 Heir Audio Rendition 1 Portable Headphone Amplifier - Silver at 2808.00 HKD from TREOO.com
Heir Audio Rendition 1 Portable Headphone Amplifier - Silver
HK$ 2,808.00
TREOO.com
Heir Audio is very pleased to launch our first portable amplifier, Rendition 1, worldwide. After a full year research and development, our engineers have designed a unique personal amplifier with excellent sound quality supported by a long lasting battery. Just like our any other products, Rendition 1 carries the Heir Audio signature of exquisite design concept with the delicate black carbon fiber on the both sides. Rendition 1 has further expanded our product line and once again reinforced our belief that each one of our products is a unique acoustical and artistic expression of the beauty of music! The successful preorders have approved the acceptance of this wonderful amplifier! The Rendition 1 is an exciting portable amp, that in keeping with Heir Audio tradition, sounds as good as it looks, and looks as good as it sounds. The sound quality can be described as “black” (quite) or without back ground hiss. The concept behind the amp was to add more “depth” and “control” to the music, rather than adding colouration. If bass is present in the music, the amp is there, waiting to add more depth; if there are highs in the music, the amp delivers those as well cleanly and clearly. The Rendition 1 is available in two case colours, black or silver, accented with black carbon fiber, rendering a look of unsurpassed class.
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Teac Ha-501 Desktop Headphone Amplifier - Silver at 5620.00 HKD from TREOO.com
Teac Ha-501 Desktop Headphone Amplifier - Silver
HK$ 5,620.00
TREOO.com
Introduce yourself to TEAC’s Ha-501, a fully analog, dual monaural headphone amplifier with elegance. Part of the 501 series, this Class-A amplifier delivers superior sound quality, a sleek, modern look, all encased in a rugged but compact design. The Ha-501 supplies regular headphone listeners with quality sound, features and adaptable options that cannot be found in regular amplifiers. Pair it with your favorite headphones the same way you would a normal amp with favored speakers and take advantage of DC Servo Technology, Switchable damping Factors, High Output Power, a large Toroidal-Core Power Transformer and relax to your favorite music or radio broadcast. A headphone amplifier to achieve peak headphone performance In general, a headphone output from conventional hi-fi components does not allow even high-quality headphones to perform at their peak potential. The same way one chooses an amplifier to match with your favorite speakers, it is very impotant to chosse an appropriate headphone amplifier that matches your favorite headphones. A headphone amplifier is a "must-have" listening device for audiophiles. Active DC Servo Technology for decreased distortion, and discrete Class-A Amplifier In order to develop a first-class low distotion Class-A headphone amplifier, Teac held a series of sound evalutions during the development. These tests led to the careful choosing of parts and descrete circuit design. In addition, like most full-size hi-fi components, in order to eliminate Offset Electrical Potential, Active DC Servo Technology is utilized. Dual Monaural Design that eliminates interference between Left and Right channels In regards to the circuit design, each channel is completely designed on an individual basis to avoid signal interface to/from another. This contribution eliminates cross-talk, crucial headphone listening. Muses8920 Op-Amps - for high-end quality Muses8920 Op-Amp chip-sets are designed for high-end audio. Employed individually on the Left and Right channels, they help achieve superior sound. This Op-amp performs superb IV-conversion and is already very well regarded and used in a wide-range of hi-fi components. Large Toroidal-core Power Transformer An over-sized Toroidal-core power transformer is also employed to supply stable current to the every part of the circuit. Damping Factor Selector to optimize headphones' characteristic Each pair of headphones has its Damping Factor, a resisting force against non-intentional movement of the diaphram moving air forwards and backwords as sound. The value of the Damping Factor varies model by model, as diaphrams are made by different materials, in different shapes or different construction designs. Since headphones' diaphrams are activated by a very small current compared to conventional speakers, the damping factor increases, the sound is lean and crisp, and has a close relationship with headphones' impedance. Therefore, selecting the right Damping Factor is crucial in order for your headphones to perform at their peak potential. The Ha-501 provides 5 selectable Damping Factors, so users have the best suited signal for multiple headphones. Total 2,800mA of output power drives your high impedance headphones The Ha-501 schieves a remarkable 1,400mW output power per channel at 32 ohms impedance. The divice delivers not only enough power to drive standard headphones with an impedance range from 80 to 250 ohms, but also high-class 600 ohms hi-fi headphones. Robust Aluminum Body with a Classy Appearance Re-defining high class hi-fi components, the Ha-501 has a small footprint, classy appearance and is constructed with aluminum panels to create an authentic but modern looking hi-fi component. A robust metal construction helps eliminate vibrations that may affect the sound quality. The bottom and sidewalls are formed with a steel chassis, aluminum for the front panel and the rear panel out of steel. In order to ensure it's rugged design, each panel is connected with a beam that runs through the center of the unit. Normally, this type of construction is only for full-size components, particularly CD players that generate inherent motor vibrations. This construction ensures the Ha-501 is an authentic hi-fi component that will last you for many years. Choose between a handsome black version and a brilliant silver version to match with any interior or design. Well-designed User Interface Another remarkable feature of the Ha-501 is the user-friendly design. The firm-torqued volume control allows users to adjust the volume level with ease and precision while the toggle-type power switch assures On/off operation at a glance. Auto-muting function protects your ears from unexpected loud sounds when switching between headphones with different levels of impedance. Professional grade Input/Output connectors On the rear panel, a pair of Neutrik brand XLR input connectors allow users to connect high-end components or professional audio equipment, while wider-pitch RCA pin jacks allow user to connect large-shaft RCA pin cables from other markets. A detachale type 3-polar power inlet socket is also avalable. On the front, a 3.5mm stereo mini-jack allows users to connect a portable music player such as an iPod, conveniently. Switchable Output Mode for flexibility Line output level from the rear panel can be swiched amongst "Fixed Level", "Variable Level (coupled with volume)" and "Off".
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Teac Ud-501 Desktop Headphone Amplifier & USB Pcm/dsd DAC - Silver at 5620.00 HKD from TREOO.com
Teac Ud-501 Desktop Headphone Amplifier & USB Pcm/dsd DAC - Silver
HK$ 5,620.00
TREOO.com
TEAC's new Ud-501 is the star of the 501 series. The Ud-501 supports Direct Stream Digital (Dsd) playback at either 2.8 MHz or 5.6MHz (Dxd) rates. PCM audio is supported up to 384kHz/32-bit resolution. It connects to your computer over USB using Asio 2.1 or DoP. The output section of the Ud-501 features two BurrBrown 32-bit DACs per channel and JRC Muses op amps, also with a dual monaural design. Both balanced XLR and unbalanced RCA outputs are available to connect to your power amplifier. A toroidal-core power supply ensures top performance and clean transient playback, for quality that outperforms components five times its price. Advanced Digital Circuits for Hi-resolution Audio Formats DSD 2.8/5.6MHz Native File Playback by Asio 2.1 or DoP Both 2.8MHz and 5.6MHz DSD files are processed in native mode to properly convert DSD into an analog signal, and skipping PCM conversion in between. Asio2.1 and DoP (Dsd over Pcm) playback are also supported. (Mac supports DoP only, with standard driver) Up to 32bit/384kHz PCM File Playback With PCM file format, files from 44.1kHz/16-bit to 384kHz/32bit resolution are supported. Asynchronous Transfer Mode Transfer timing is controlled by more accurately by ignoring the clock signal from a PC, nearly eliminating clock-noise and allowing digital data to travel un-affected. Variety of Digital Filter Settings and Preferences Three types of digital filters are provided for PCM playback, while 4 types of cut-off filters are provided for DSD playback. Also, shutting down unnecessary circuits – USB circuit when S/pdif inout is selected, or Line Out circuit when Headphones are connected – for purer audio processing. Reducing Jitter Noise by 192kHz Up-Converting With a PCM file sampling at a frequency less than 192kHz, users are able to convert up to 192kHz in order to reduce jitter noise, or keep the original sampling rate to enjoy the original sound. Pure Audio Circuits With Classic Audio Pedigree Dual Monaural Circuits to Eliminate Signal Interference and Maximize Performance. Every single part of the digital and analog sections are designed in dual monaural design to eliminate interfering noise to other channels. This maximizes the potential of the the DAC and the operational amplifiers, and achieves a purer audio processing signal. 32bit-compatible BurrBrown Pcm1795 on Each Channel The celebrated BurrBrown Pcm1795 D/A converter is used on each channel, which supports 32bit audio with a 123dB S/N Ratio. D ual Muses8920 Operational Amplifier on Each Channel Two Muses8920 operational amplifiers are used on each channel. The Muses8920 was developed for hi-fi components to deliver clear, 3-dimensional sound. Individual Toroidal-core Power Transformer on Each Channel – Maintaining Total Dual Monaural Design The two toroidal-core power transformers offer a stable current supply with energy-effcient operation. Using a pair of power transformers, one each for the left and right channel, ensures that current is delivered exclusively to each channel. RCA Output with Parallel Buffer for Better Drivability Two operational amplifiers are connected in parallel with the line out circuit section to improve of line-out signal drive. This helps achieve a more linear analog output signal than any other known method. Large Number of Inputs & Outputs for Full-Scale Hi-Fi System Integration The Ud-501 provides two optical and coaxial digital inputs, one pair of XLR and one pair of RCA analog audio outputs. The RCA lineout jacks have an exclusive clearance zone, so a high grade pin cable with a large shell is able to be connected. The output terminal is selectable to either RCA or Xlr. The XLR output connectors have switchable polarity, either pin 2 HOT or pin 3 Hot, to accomodate vintage amplifiers. A standard detachable IEC cable with 3-polar socket allows user to upgrade to high-grade AC cables.
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 JDS Labs C5 Portable Headphone Amplifier - Black at 1626.00 HKD from TREOO.com
JDS Labs C5 Portable Headphone Amplifier - Black
HK$ 1,626.00
TREOO.com
Audibly Perfect Channel Balance Digital stepped attenuation with zero-crossing detection and 1dB attenuation steps provide smooth volume adjustment at all volume levels, even with sensitive IEMs. DC Coupled Signal Path C5 uses a purely resistive signal path. Thin film, 0.1% tolerance resistors ensure low noise and high channel accuracy. Dual LDO Power Regulation High performance audio starts with clean power. Supply rails are filtered by impressive Tps7A4700 and Tps7A3301 regulators to achieve ultra low supply noise at a constant output voltage of+/-7V. Smart USB Charging Powered by a large 1200mAh Li-Ion battery, C5 quickly charges from any USB port (computer, tablet charger, cell phone charger, etc.). A single LED indicates battery status: solid green while on, blinking while battery is low, or blue while charging.
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Alpha Design Labs Stride Portable Headphone Amplifier - Black at 2954.00 HKD from TREOO.com
Alpha Design Labs Stride Portable Headphone Amplifier - Black
HK$ 2,954.00
TREOO.com
It’s the age of personal, portable electronics; everyone carries their music with them. Whether you’re using iTunes for low-bit-rate downloads or high resolution music files just connect your computer to the Stride with one of our matching ADL Formula 2 USB cables or the new i-D35SP analog stereo cables. When you’re on the road plug your music player’s analog headphone output into the line input of the Stride and open the player’s volume to maximum and use the volume control on the Stride. For higher resolution all-digital signals simply connect the Stride to your computer’s USB port. The USB port charges the battery and you can listen to music while it’s charging!
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FiiO E06 Fujiyama Portable Headphone Amplifier at 276.00 HKD from TREOO.com
FiiO E06 Fujiyama Portable Headphone Amplifier
HK$ 276.00
TREOO.com
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FiiO E12 Mont Blanc Portable Headphone Amplifier at 1064.00 HKD from TREOO.com
FiiO E12 Mont Blanc Portable Headphone Amplifier
HK$ 1,064.00
TREOO.com
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Grado RA1 Reference Desktop Headphone Amplifier (Battery) at 3370.00 HKD from TREOO.com
Grado RA1 Reference Desktop Headphone Amplifier (Battery)
HK$ 3,370.00
TREOO.com
After years of relying on other equipment to drive Grado headphones, you can now listen and enjoy headphones through our new Grado Reference Headphone Amp, the Ra1. Designed for state-of-the-art performance and specifically to play Grados, the new RA1 will allow you to hear your headphones like never before. This new amp is machined from a solid block of mahogany and measures 5" wide, 5 1/2" deep and 1 1/2" tall and weighs in at 12 oz. The RA1 is available in an AC version or can be powered by two 9-Volt batteries that will drive the amp for 40 to 50 hours of listening pleasure. And the sound? Just like all Grados: warm, smooth, full-bodied, non-fatiguing and rich. Hook it up to any line source (portable or in-home) and drive your Grado headphones to their full potential. The Grado Labs RA1 headphone amp was designed specifically to drive Grado headphones and it does that quite decently indeed. It's recommended for use with fairly efficient (low impedance) headphones like the 32-Ohm Grado Labs headphone line. This is the battery-powered amp unit. The 'AC-power' Grado RA1 (Ac) version is also available. The RA1 design is small and fairly light for portable use, although that trad Grado wood-block design makes it somewhat bulky for easy travel and mobile listening on the fly. It's a very simple yet effective & the front panel sports a volume control, an on/off LED light, and a full-size 1/4" headphone jack. The rear of the amp provides an on/off switch and one pair of left/right RCA inputs. The battery compartment holds two 9V batteries, and is easily accessible via a metal plate with two screws located on the bottom of the amp. One bummer: the battery-powered Ra-1 does not operate with a wall wart/AC adapter.
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 JDS Labs Objective2 Desktop Headphone Amplifier - Black at 1176.00 HKD from TREOO.com
JDS Labs Objective2 Desktop Headphone Amplifier - Black
HK$ 1,176.00
TREOO.com
The Objective2 (O2) is an open source headphone amplifier designed by NwAvGuy, with emphasis on benchmark performance and low cost. This item includes a fully assembled and hand tested O2 amplifier, ready for use. You will only need an AC adapter suitable for your region. The O2 has created a stir in Head-Fi.org’s do-it-yourself community. After being banned from Head-Fi for heated discussion, he proceeded to design O2 for maximum benchmark performance to prove his points. It’s large and heavy, so hardly worth consideration as a portable amp, however, O2 lives up to its name. For more information on the O2, please refer to NwAvGuy's O2 Details article. Note: You need a separate power adapter with this device. If you do not have one, please add the G.e.z. 15Vac Power Adapter to cart. Customisation The default gain levels of the Objective2 are intended to work well with over 95% of headphones on the market. We use the stock O2 with headphones as low as 16 ohms @ 108 dB/mW, and as high as 600 ohms (very high and very low efficiency, respectively). There is no reason to change the stock gain unless you regularly listen at extremely low volumes. Gain can easily be changed by removing two resistors. You may choose for JDS Labs to set gain of 1.0x/6.5x or 2.5x/1.0x, and such customisations will only be on pre-order basis (2-3 weeks).
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NuForce Mobile Music Pump Portable Headphone Amplifier - White at 445.00 HKD from TREOO.com
NuForce Mobile Music Pump Portable Headphone Amplifier - White
HK$ 445.00
TREOO.com
The NuForce Mobile Music Pump (Mmp) is a portable headphone amplifier designed to make your music truly come alive… wherever you go. The fact is that the majority of hand-held audio playback devices simply aren't capable of adequately powering many of today's quality headphones. This is because headphones present a definite challenge to amplifier designers. There are two basic types: the Over-Ear (Oe) in general use in the recording industry, and the smaller In-Ear (Ie), a.k.a. "ear-bud" type commonly used with portable devices such as MP3 players. Given the range of available OE and IE headphones, in attempting to accommodate them all, your mobile device’s headphone output is optimized for none. Typically, OE types exhibit sensitivities of about 100dB/mW, whereas IE devices can be 10dB higher or more, e.g., 110dB/mW. Assuming a 10dB difference, the lower sensitivity OE headphones require ten times more power to achieve the same volume as the IE type. If you’re using OE headphones, you’ll really appreciate the NuForce MMP power capability. Your headphones will sound distinctly clearer and more natural. Just connect the MMP to the headphone output of your MP3 player, Smartphone, iDevice, etc. and finally start experiencing the higher level of performance your headphones were always capable of.
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 Tralucent Audio T1 Portable Headphone Amplifier at 2189.00 HKD from TREOO.com
Tralucent Audio T1 Portable Headphone Amplifier
HK$ 2,189.00
TREOO.com
The T1 portable amplifier has been designed and tuned allowing all genreof music to be expressed naturally to your favorite earphones or headphones. Our criterion for the T1 portable amplifier was to allow this portable amp to exert grip and control over the transducers, while maintaining a highly detailed and accurate presentation. The signature of the T1 allows the listener a real taste of what high endsystems can sound like. The T1 portable amplifier offers unsurpassed soundquality that rivals many portable amplifiers at over twice its price. When you take a first listen to the T1 portable amplifier, you will beastounded by the bass emanating from such a diminutive device. The texture and quality of the bass is supplemented by weight which is an important factor in portraying realism in this frequency range. The way bass notes hangs in the air for that fraction of a second will define the atmospheric ambiance and laying the foundations to your music. The mid range and the high frequency presentation of the T1 portable amp is full, rich and natural sounding with clarity that lets you hear deeper into the recording. Positional cues are excellent, as is the layering of the soundstage. The T1 portable amplifier is highly detailed but at the same time smooth and alluring. The T1 portable amplifier is compatible with all portable players. Included with the T1 is a high quality 3.5mm connection cable for your player, a usb cable for charging and two silicon bands to strap the T1 to your player.
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SoundMAGIC A10 Portable Headphone Amplifier at 557.00 HKD from TREOO.com
SoundMAGIC A10 Portable Headphone Amplifier
HK$ 557.00
TREOO.com
Discover true high-fidelity sound with outstanding clarity in a small but mighty package with SoundMAGIC's A10 headphone amplifier. Share your music without reduction in sound quality, increase the volume of high impedance headphones, whilst reducing battery drain from your MP3 player with clean, accurate sound amplification and optional XB bass boost. Designed for high impedance and low sensitivity headphones, the A10 from SoundMAGICdelivers on every account - no matter what you throw at it. The small size and weight make theA10 the ideal sonic partner for your portable audio setup. Your headphones will be protected from damage thanks to the clever circuit safeguard. Charging is a doddle with the mini USB charging port the internal battery gets it's power straight from your PC or laptop. Save Battery Life As the headphones pull the power from the amplifier, battery drainage of your audio source is reduced. Portable Design With a lightweight and compact size the SoundMAGIC A10 is the perfect travelling partner. Easy Charge The internal battery is charged via mini USB from PC or laptop - no need to carry separate batteries with you. Complete Package Included in the package of the A10 are all the necessary cables to connect to portable audio players and for connecting a second pair of headphones. Also comes with a handy travel pouch.
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NuForce Mobile Music Pump Portable Headphone Amplifier - Black at 445.00 HKD from TREOO.com
NuForce Mobile Music Pump Portable Headphone Amplifier - Black
HK$ 445.00
TREOO.com
The NuForce Mobile Music Pump (Mmp) is a portable headphone amplifier designed to make your music truly come alive… wherever you go. The fact is that the majority of hand-held audio playback devices simply aren't capable of adequately powering many of today's quality headphones. This is because headphones present a definite challenge to amplifier designers. There are two basic types: the Over-Ear (Oe) in general use in the recording industry, and the smaller In-Ear (Ie), a.k.a. "ear-bud" type commonly used with portable devices such as MP3 players. Given the range of available OE and IE headphones, in attempting to accommodate them all, your mobile device’s headphone output is optimized for none. Typically, OE types exhibit sensitivities of about 100dB/mW, whereas IE devices can be 10dB higher or more, e.g., 110dB/mW. Assuming a 10dB difference, the lower sensitivity OE headphones require ten times more power to achieve the same volume as the IE type. If you’re using OE headphones, you’ll really appreciate the NuForce MMP power capability. Your headphones will sound distinctly clearer and more natural. Just connect the MMP to the headphone output of your MP3 player, Smartphone, iDevice, etc. and finally start experiencing the higher level of performance your headphones were always capable of.
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FiiO E01 Alisan Portable Headphone Amplifier for iPhone/iPod - Black at 181.00 HKD from TREOO.com
FiiO E01 Alisan Portable Headphone Amplifier for iPhone/iPod - Black
HK$ 181.00
TREOO.com
The FiiO E01 Alisan (FiiO E1) Headphone Amplifier for iPod/iPhone with In-Line Remote Control is a headphone amplifier specifically designed for use with Apple's iPod and iPhone. It is the first headphone amplifier in the world with in-line remote control functions. The FiiO E01 has a built-in high quality headphone amplifier IC manufactured by Texas Instruments. The FiiO E01 uses the line out signal from the iPod/iPhone, so it provides better sound quality, and is able to drive high impedance or low sensitivity headphones! With the in-line control function, you can easily control the playback of the iPod/iPhone from the E01 Amplifier. Powered by the iPod or iPhone, the FiiO E01 requires no charging or batteries. The FiiO E01 will bring you better sound quality and a more convenient playback experience!
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Shozy Px-M1 Portable Headphone Amplifier - Silver at 2245.00 HKD from TREOO.com
Shozy Px-M1 Portable Headphone Amplifier - Silver
HK$ 2,245.00
TREOO.com
This stylish and sleek portable headphone amp will breathe new life into your audiophile setup while on the go.
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Titan iRiver Astell&Kern Ak380 Amp Docking Portable Headphone Amplifier - Meteoric at 6183.00 HKD from TREOO.com
Titan iRiver Astell&Kern Ak380 Amp Docking Portable Headphone Amplifier - Meteoric
HK$ 6,183.00
TREOO.com
The AK380's First Accessory, AMP The primary goal of Astell&Kern has always been to deliver the original sound. We're proud to introduce the Ak380 Amp, an amplifier that supports high-impedance headphones and high-gain output while remaining faithful to the original sound. Expansion-type amplifier with design unity. 3,400 mAh large-capacity battery. 8.1 Vrms high-gain balanced output. 4.1 Vrms unbalanced output. Introducing Ak380 Amp, the first accessory to complement the Ak380. High Gain The Ak380 AMP supports 8.1 Vrms output when connected via high-gain balanced output. High-gain output is four times greater than low-gain output and supports high-impedance headphones. To protect earphones/headphones during high output, the volume is automatically adjusted when the amp is powered on or the earphones/headphones are disconnected. Furthermore, the gain can be easily adjusted via the AK380's settings. 3,400 mAh Large-capacity Battery An amplifier, which increases audio output, consumes a great amount of energy. Thus, the Ak380 AMP features a 3,400 mAh large-capacity battery – identical to the one in the Ak380 itself - to support up to nine hours of continuous unbalanced-output playback.
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 Lehmann Audio Rhinelander Desktop Headphone Amplifier - Silver at 3376.00 HKD from TREOO.com
Lehmann Audio Rhinelander Desktop Headphone Amplifier - Silver
HK$ 3,376.00
TREOO.com
Despite all the down-to-earthness of an entry-level model – this ambitious headphone amplifier will open up a whole new world of musical enjoyment to you. The Rhinelander stands fully in the high-end tradition of the Lehmannaudio products. With its superior set of features it shows a marked contrast to other devices in its price class. If you have taken a sceptical stance towards headphones so far, the Rhinelander will fully convince you of the contrary. From now on using headphones will never again be a compromise aiming to keep domestic peace, but a pleasant way to fully indulge in your passion for music. Ultra low-noise, transparent and with an impressive performance potential … an addictive sound experience is awaiting you. "Perhaps, more than with any affordable headphone amp we can recall, the sound just keeps you there listening after bedtime and you’ll find yourself enjoying familiar recordings as never before." — Hi-Fi Choice Your first step into the world of headphone amps The sonic kinship with the Linear reference device is due to the specially selected, high-grade components and sophisticated circuit design. The Rhinelander has a well dimensioned, discrete class A solid-state output stage with no overall negative feedback, which holds sufficient power reserves available for most common headphones and also gives your favourite sounds an impressive clarity. An impressive all-rounder Moreover, our entry-level model is equipped with plenty of other audiophile components: for instance, we have chosen low-loss MKP capacitors for the audio path and a double-sided pc board for an optimum layout. Low ESR electrolytic capacitors in the power supply, an integrated voltage gain stage and a Neutrik headphone socket serve to optimise the audiophile device. The volume controls are handpicked to ensure a high synchronism and to keep localisation as stable as on the recording. In addition the Rhinelander features two inputs plus an input selection via a high-quality relay. By the way, it also knows how to delight as a high-class single-source preamplifier. The single-source preamp mode is active as default setting. Such an elaborate construction with exquisite components is unique in a headphone amplifier of this price range.
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Creative Creative Sound BlasterX G5 7.1 Headphone Surround HD Audio External Sound Card with Headphone Amplifier SB1700 at 1192.00 HKD from LinkEcomputer
Creative Creative Sound BlasterX G5 7.1 Headphone Surround HD Audio External Sound Card with Headphone Amplifier SB1700
HK$ 1,192.00
LinkEcomputer
Native 7.1 Surround Sound Support Immersive 3D PC Gaming Audio Best-in-class Console Gaming Audio Blaster Acoustic Engine Pro Audiophile-grade Headphone Amplifier Built-in SB-Axx1 Audio Processor
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FiiO E02i Rocky Portable Smartphone Headphone Amplifier - Black at 226.00 HKD from TREOO.com
FiiO E02i Rocky Portable Smartphone Headphone Amplifier - Black
HK$ 226.00
TREOO.com
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Teac Ud-501 Desktop Headphone Amplifier & USB Pcm/dsd DAC - Black at 5620.00 HKD from TREOO.com
Teac Ud-501 Desktop Headphone Amplifier & USB Pcm/dsd DAC - Black
HK$ 5,620.00
TREOO.com
TEAC's new Ud-501 is the star of the 501 series. The Ud-501 supports Direct Stream Digital (Dsd) playback at either 2.8 MHz or 5.6MHz (Dxd) rates. PCM audio is supported up to 384kHz/32-bit resolution. It connects to your computer over USB using Asio 2.1 or DoP. The output section of the Ud-501 features two BurrBrown 32-bit DACs per channel and JRC Muses op amps, also with a dual monaural design. Both balanced XLR and unbalanced RCA outputs are available to connect to your power amplifier. A toroidal-core power supply ensures top performance and clean transient playback, for quality that outperforms components five times its price. Advanced Digital Circuits for Hi-resolution Audio Formats DSD 2.8/5.6MHz Native File Playback by Asio 2.1 or DoP Both 2.8MHz and 5.6MHz DSD files are processed in native mode to properly convert DSD into an analog signal, and skipping PCM conversion in between. Asio2.1 and DoP (Dsd over Pcm) playback are also supported. (Mac supports DoP only, with standard driver) Up to 32bit/384kHz PCM File Playback With PCM file format, files from 44.1kHz/16-bit to 384kHz/32bit resolution are supported. Asynchronous Transfer Mode Transfer timing is controlled by more accurately by ignoring the clock signal from a PC, nearly eliminating clock-noise and allowing digital data to travel un-affected. Variety of Digital Filter Settings and Preferences Three types of digital filters are provided for PCM playback, while 4 types of cut-off filters are provided for DSD playback. Also, shutting down unnecessary circuits – USB circuit when S/pdif inout is selected, or Line Out circuit when Headphones are connected – for purer audio processing. Reducing Jitter Noise by 192kHz Up-Converting With a PCM file sampling at a frequency less than 192kHz, users are able to convert up to 192kHz in order to reduce jitter noise, or keep the original sampling rate to enjoy the original sound. Pure Audio Circuits With Classic Audio Pedigree Dual Monaural Circuits to Eliminate Signal Interference and Maximize Performance. Every single part of the digital and analog sections are designed in dual monaural design to eliminate interfering noise to other channels. This maximizes the potential of the the DAC and the operational amplifiers, and achieves a purer audio processing signal. 32bit-compatible BurrBrown Pcm1795 on Each Channel The celebrated BurrBrown Pcm1795 D/A converter is used on each channel, which supports 32bit audio with a 123dB S/N Ratio. D ual Muses8920 Operational Amplifier on Each Channel Two Muses8920 operational amplifiers are used on each channel. The Muses8920 was developed for hi-fi components to deliver clear, 3-dimensional sound. Individual Toroidal-core Power Transformer on Each Channel – Maintaining Total Dual Monaural Design The two toroidal-core power transformers offer a stable current supply with energy-effcient operation. Using a pair of power transformers, one each for the left and right channel, ensures that current is delivered exclusively to each channel. RCA Output with Parallel Buffer for Better Drivability Two operational amplifiers are connected in parallel with the line out circuit section to improve of line-out signal drive. This helps achieve a more linear analog output signal than any other known method. Large Number of Inputs & Outputs for Full-Scale Hi-Fi System Integration The Ud-501 provides two optical and coaxial digital inputs, one pair of XLR and one pair of RCA analog audio outputs. The RCA lineout jacks have an exclusive clearance zone, so a high grade pin cable with a large shell is able to be connected. The output terminal is selectable to either RCA or Xlr. The XLR output connectors have switchable polarity, either pin 2 HOT or pin 3 Hot, to accomodate vintage amplifiers. A standard detachable IEC cable with 3-polar socket allows user to upgrade to high-grade AC cables.
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 Shonyun Sh-301 PRO Desktop Headphone Amplifier at 3708.00 HKD from TREOO.com
Shonyun Sh-301 PRO Desktop Headphone Amplifier
HK$ 3,708.00
TREOO.com
The amplifier section itself in this machine is designed around a combination of TI Opa627 opamps with a discrete buffer comprised of Mje15030 and Mje15031 transistors from ON Semiconductor. Packed in with plenty of power, the soundstage blends in with proportion. The 301 PRO has an exciting sound, yet cause the listener little fatigue when listened over long periods. Fins on the left and right side act as heat sinks which helps the Class A design dissipate heat. The 301 PRO is a very compact unit with a separate outboard power supply. Some other components used are the Elan heat electrolytic capacitors and Philips electrolytic capacitors. Internally, the 34V regulated power supply unit is almost entirely filled by the large toroidal transformer.
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Shozy Px-M1 Portable Headphone Amplifier - Grey at 2245.00 HKD from TREOO.com
Shozy Px-M1 Portable Headphone Amplifier - Grey
HK$ 2,245.00
TREOO.com
This stylish and sleek portable headphone amp will breathe new life into your audiophile setup while on the go.
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FiiO E12A Mont Blanc IEM Special Edition Portable Headphone Amplifier at 1401.00 HKD from TREOO.com
FiiO E12A Mont Blanc IEM Special Edition Portable Headphone Amplifier
HK$ 1,401.00
TREOO.com
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FiiO A5 Portable Headphone Amplifier - Black at 1120.00 HKD from TREOO.com
FiiO A5 Portable Headphone Amplifier - Black
HK$ 1,120.00
TREOO.com
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 Portable HiFi Headphone Amplifier at 223.00 HKD from Zapals
Portable HiFi Headphone Amplifier
HK$ 223.00
Zapals
A fantastic sounding headphone amp for music enthusiasts.
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 JDS Labs CMoyBB v2.03 Portable Headphone Amplifier (Demo Unit) at 704.00 HKD from TREOO.com
JDS Labs CMoyBB v2.03 Portable Headphone Amplifier (Demo Unit)
HK$ 704.00
TREOO.com
Exclusive Bass Boost Switch The cMoyBB ships with an internal bass boost toggle switch. Switched off, the original, flat audio signal is amplified. Switched on, bass is increased up to 9.4 dB, just shy of a perceived 2x increase in bass volume. Do-it-yourself builders have the option to substitute the bass boost toggle switch for a bass boost control knob. Printed Circuit Board (Pcb) Most cMoys are built on protoboard and use thin wires to transfer the audio signal, making them prone to interference and signal degradation. The cMoyBB v2.03 uses a top-layer ground plane and tightly optimized signal traces, easily outperforming hand-soldered protoboard connections. Proprietary software was used during design of the PCB to check for proper impedance characteristics and negligible crosstalk. Such attention to detail cannot be achieved in protoboard amplifiers, or even in circuit boards designed by most hobbyists. Not sure what all of this means? Check out the cMoyBB reviews. Power System A Texas Instruments Tle2426 precision rail splitter and 25V, low noise Nichicon 470 uF capacitor are used to eliminate the unbalanced resistor divider power system found in standard cMoys. The cMoyBB handles more than double the voltage of most cMoys, meaning the dynamic range of high impedance headphones can be extended even further when using a high voltage DC adapter. Version 2.03 optionally allows for a second Tle2426 rail splitter, giving the cMoyBB more current handling capability than ever! The cMoyBB v2.03 also employs ceramic decoupling capacitors on all IC power pins. Decoupling helps to prevent IC supply ringing, which significantly enhances opamp stability and sound quality. DC Auxiliary Power Input Jack Any regulated 9-24V DC power adapter with a 1.3mm x 3.5mm DC jack can be used to power the cMoyBB amplifier. Connecting a DC power adapter to a non-rechargeable cMoyBB automatically and safely disconnects the 9V battery. cMoyBBs equipped with NiMH recharging circuitry use the same jack to charge the battery. The cMoyBB can be used while charging! JDS Labs does not sell or include Ac/dc adapters. However, a DC adapter can be purchased for as little as $10 (Usd) in North America. See Instructions for details. Enclosure The cMoyBB v2.03 is cased inside of a brand new* Altoids® Peppermint tin, protecting the circuit from some forms of external EMI / RF interference. Foam support keeps the battery securely in place. Other mint tins are sometimes in stock. Contact us if you have something specific in mind. *Despite each tin being brand new, Altoids ® tins occasionally have some sort of scratch or dent (not always!). Additionally, you should anticipate minor jack mounting imperfections due to the hand built nature of the product. Please excuse these possible minor cosmetic defects. Options: In addition to gain adjustment, the cMoyBB can be assembled in four ways: Standard, Non-rechargeable, 1x9V battery. Best for most users. External DC jack can be used to power the amplifier; does not charge battery. Standard, Non-rechargeable, 2x9V batteries (18V). Recommended for high volume listening with 120+ ohm headphones. Rechargeable, 1x9 battery. Ideal for portable use of most headphones. Includes 1x9V Tenergy low self-discharge NiMH battery. Requires a 10V+ Ac/dc adapter (not included)! Rechargeable, 2x9 batteries. Recommended for portable use of 120+ ohm headphones. Includes 2x9V Tenergy low self-discharge NiMH batteries. Requires a 19V+ Ac/dc adapter (not included)!
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Alpha Design Labs Cruise Portable Headphone Amplifier at 3910.00 HKD from TREOO.com
Alpha Design Labs Cruise Portable Headphone Amplifier
HK$ 3,910.00
TREOO.com
It's the age of personal, portable electronics; everyone carries their music with them. Accessories reflect your personal style and the Cruise is sure to create jealousy and envy wherever you go. It delivers thrilling sound to match its gorgeous appearance. Whether you're using iTunes for low-bit-rate downloads or high resolution music files just connect your computer to the Cruise with one of our matching ADL Formula 2 USB cables or the new i-D35SP analog stereo cables. When you're on the road plug your music player's analog headphone output into the line input of the Cruise and open the player's volume to maximum and use the volume control on the Cruise. For higher resolution all-digital signals simply connect the Cruise to your computer's USB port. The USB port charges the battery and you can listen to music while it's charging!
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 Meridian Prime Desktop Headphone Amplifier at 12371.00 HKD from TREOO.com
Meridian Prime Desktop Headphone Amplifier
HK$ 12,371.00
TREOO.com
Overview Recently, the headphone market has greatly increased in popularity, and for many it is the primary way to experience music. This choice is based not only on performance, but also feel, comfort, and style. It is with this in mind we introduce Meridian Prime Headphone Amplifier. With a new chassis design instantly identifiable as Meridian Dna, Meridian Prime delivers lifelike performance from any headphone and is designed to appeal to audio enthusiasts who seek the highest possible performance from conventional analogue audio sources. Meridian Prime provides three inputs, one dedicated and optimised to USB sources for computer audio, discrete pure analogue inputs on RCA for traditional sources, and a 3.5mm connection for portable devices such as a smart phone or tablet. Asp, or Analogue Spatial Processing, is an option for “outside the head” listening through headphones. Design Despite its diminutive size, Meridian Prime echoes the design elements of any other Meridian product, including a double skinned, bead blasted metal chassis found on Meridian’s full size components. This ensures that noise is kept away from critical audio components for lifelike details that are critical for headphone listening. The Meridian Prime Headphone Amplifier can be powered by the wall- mounted supply provided, or by the similarly sized, and styled, Meridian Prime Power Supply for even higher audio quality. The use of an external power supply means that AC noise is kept well away from the pure analogue stages of the Headphone Amplifier. Virtually all the active audio components are at the rear of the unit, as close to the connectors as possible to minimise the audio path length, and are essentially remote-controlled from the front panel. This is even true of the volume potentiometer, a high-quality Alps-type mounted near the rear of the unit, which controls the level of all outputs. A special flexible shaft coupling is employed to avoid microphony, resulting from operation of the volume knob. An analogue output is also provided so the product can be connected to an active loudspeaker, or conventional amplifier and loudspeaker system for a high-performance simple system. A 6-layer circuit board provides ground-planes and maximises signal isolation. The product is DC-coupled, for outstanding low frequency control and overall audio reproduction, and absolute phase is maintained throughout. Technology Meridian Prime will appeal to even to most demanding users with its range of input connectivity, performance, unique features, and build quality. Three front-panel headphone sockets are provided, optimised for purpose. One is a 3.5mm stereo socket for the connection of earbuds and similar devices, which presents an output impedance of 2Ω to suit these devices. The other two sockets offer an exceptionally low impedance (around 3mΩ) and are standard 1/4in stereo (tip-ring-sleeve) types, carrying both channels. They can be used to connect two pairs of headphones, or to attach a single pair of headphones wired with separate cords for left and right drivers, thus offering the opportunity to reduce headphone crosstalk. In addition to simply replaying stereo audio at the highest possible quality via headphones, the outputs also include two “Analogue Spatial Processing” modes, i and ii, which replace the typical “in the head” experience of headphone listening with a smooth, natural feeling of spatiality that is much more like listening on a pair of loudspeakers in front of the listener. The USB conversion system is powered from the interface, meaning that when it is disconnected, all digital circuitry in the unit is deactivated. The fully asynchronous USB 2.0 interface supports signals at up to 192kHz/24-bit sampling and includes Meridian resolution enhancement techniques such as oversampling and Meridian’s unique Apodising filter. Prime Apodising Filter Filters are critical in digital audio. Commonly they introduce distortion and harshness because of "pre-ringing". Early digital recordings suffer from harshness too, due to primitive filters. After painstaking research, Meridian developed a special filter that avoids pre-ringing, so it can be steeper, cleaning up the effects of early filters. The result: a better, cleaner sound from recordings old and new.
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 JDS Labs Objective2 Desktop Headphone Amplifier - Silver at 1176.00 HKD from TREOO.com
JDS Labs Objective2 Desktop Headphone Amplifier - Silver
HK$ 1,176.00
TREOO.com
The Objective2 (O2) is an open source headphone amplifier designed by NwAvGuy, with emphasis on benchmark performance and low cost. This item includes a fully assembled and hand tested O2 amplifier, ready for use. You will only need an AC adapter suitable for your region. The O2 has created a stir in Head-Fi.org’s do-it-yourself community. After being banned from Head-Fi for heated discussion, he proceeded to design O2 for maximum benchmark performance to prove his points. It’s large and heavy, so hardly worth consideration as a portable amp, however, O2 lives up to its name. For more information on the O2, please refer to NwAvGuy's O2 Details article. Note: You need a separate power adapter with this device. If you do not have one, please add the G.e.z. 15Vac Power Adapter to cart. Customisation The default gain levels of the Objective2 are intended to work well with over 95% of headphones on the market. We use the stock O2 with headphones as low as 16 ohms @ 108 dB/mW, and as high as 600 ohms (very high and very low efficiency, respectively). There is no reason to change the stock gain unless you regularly listen at extremely low volumes. Gain can easily be changed by removing two resistors. You may choose for JDS Labs to set gain of 1.0x/6.5x or 2.5x/1.0x, and such customisations will only be on pre-order basis (2-3 weeks).
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FiiO E09K Qogir Desktop Headphone Amplifier at 1007.00 HKD from TREOO.com
FiiO E09K Qogir Desktop Headphone Amplifier
HK$ 1,007.00
TREOO.com
The FiiO E09K Desktop Headphone Amplifier with E17 Dock In is designed to work with the FiiO E7, E07K and the E17. It features dual-channel power outputs for both 1/4" and 1/8" headphone plugs, as well as an additional RCA L/R audio output, USB interface and line input. The amplifier features a Texas Instruments main power amp integrated circuit with a low noise level, low distortion and a high conversion rate. The E09K is cleverly designed with an E17 dock for using the line out signal from the Fiio E17 docking port. This provides better sound quality and makes the amp able to drive high impedance or low sensitivity headphones -- giving you the clarity and punch to make your music sound alive and vibrant. Plus, it lets you charge and sync the E17 with your computer as well. The E09K even has a Low/High gain section switch, LED power indicator and a built-in power converter to meet the demands of high dynamic signal processing. Based on the FiiO E9, this updated version allows for synchronously working for power supply and turn on/off. When using with E17, it only needs to turn on/off E09K, and E17 will turn on/off at the same time. When selecting AUX IN and Dock IN signal of E09K, there is no need to take out Dock from E17, you just need to adjust the switch. The Eo9K features reliable, durable RCA gold-plated terminals rather than 3.5mm connectors. Other than these updates, there is no tone quality difference between FiiO's E09K and earlier E9. Note: The FiiO E09K is the newest batch which does NOT have compatibility issues with the FiiO E7 as it may have been stated in some product reviews of the E09K.
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Gearbest Xduoo XD - 05 Portable Audio DAC Headphone Amplifier at 1449.00 HKD from GearBest
Gearbest Xduoo XD - 05 Portable Audio DAC Headphone Amplifier
HK$ 1,449.00
GearBest
Xduoo XD - 05 Portable Audio DAC Headphone Amplifier
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FiiO K5 Docking Desktop Headphone Amplifier at 1120.00 HKD from TREOO.com
FiiO K5 Docking Desktop Headphone Amplifier
HK$ 1,120.00
TREOO.com
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Beyerdynamic A20 Desktop Headphone Amplifier at 5058.00 HKD from TREOO.com
Beyerdynamic A20 Desktop Headphone Amplifier
HK$ 5,058.00
TREOO.com
Rediscover Your Music With the A20 you will rediscover your dynamic headphones. This new headphone amplifier from beyerdynamic is perfect for all headphone applications and provides dual outputs for shared listening with a partner. The A20 headphone amplifier is used to operate up to two headphones with a nominal impedance from 30 to 600 ohms. The power amplifier, of a discrete design, and the combination of selected high-grade components inside the device allows even high-impedance hi-fi headphones to be driven flawlessly over the entire frequency range. Superior Sound The circuit of the A20 is designed based on beyerdynamic's legendary A1 reference headphone amplifier. The discrete output stage provides plenty of power even for high-impedance headphones while the dynamic, open and precise sound sets the A20 apart from what can be found in the normal output stages of regular amplifiers or receivers. This is confirmed by its first-class circuitry and excellent technical specifications that provide a balanced sound for long periods of comfortable listening. High Build Quality and Nice Looks Made of brushed aluminum, the housing of the A20 is especially solid and resonance-free. Due to the innovative chassis design, no screws are visible on the external surfaces. Equipped with an original Alps potentiometer for variable volume control, a knob turned from solid aluminum completes the attractive yet robust look of this amplifier. The volume control adjusts the volume for both headphone outputs, which are connected in parallel. Its handy button is made of solid aluminum and hides a high-grade Alps potentiometer with smooth volume values. Gold-plated RCA phono sockets on the rear are used to connect the audio source and allow a signal transmission without loss. The input is looped-through, which means audio signals that are present at the Input sockets are routed to the Output sockets, even when the device is switched off. Due to the hard-wired design there is no loss. The high-quality metal housing is made of brushed aluminum and protects against signal scattering and vibration. Simple and Flexible With a high-gain RCA input, the A20 works easily with most sources. The input signal can be looped through and is entirely free from signal-loss thanks to the hard-wired RCA output. Due to the built-in power supply, which is connected via a detachable power cord (supplied), no external power supply is needed avoiding disturbing background noise. Thanks to the dual headphone jacks on the front, two people can listen to the A20 together without an adapter cable.
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Xduoo xDuoo Headphone Amplifier Mini Portable High Quality Sound Amplifier Sound Quality Improver Connected with PC All Mobile Phones or For iPhone6 6Plus Samsung S6 S5 Note 4 3 HTC LG Pads PC Rail-Rail Amplifier Chip at 234.00 HKD from Tomtop
Xduoo xDuoo Headphone Amplifier Mini Portable High Quality Sound Amplifier Sound Quality Improver Connected with PC All Mobile Phones or For iPhone6 6Plus Samsung S6 S5 Note 4 3 HTC LG Pads PC Rail-Rail Amplifier Chip
HK$ 234.00
Tomtop
xDuoo Headphone Amplifier Mini Portable High Quality Sound Amplifier Sound Quality Improver Connected with PC All Mobile Phones or For iPhone6 6Plus Samsung S6 S5 Note 4 3 HTC LG Pads PC Rail-Rail Amplifier Chip
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 S.m.s.l Sapii Mini Portable HiFi High Fidelity Digital Stereo Audio Earphone Headset Headphone Amplifier Amp at 530.00 HKD from Tomtop
S.m.s.l Sapii Mini Portable HiFi High Fidelity Digital Stereo Audio Earphone Headset Headphone Amplifier Amp
HK$ 530.00
Tomtop
Features: HiFi headphone amplifier, great for high-impedance phones to have a mellow and plump sound. Dual ways input: 3.5mm RCA (L R) interfaces. Use the Select to choose the input way. (Eg: When you choose 3.5mm audio in, don't have to pull out the RCA line.) High precision power divider circuit can guarantee the stability of the circuit. 6.35mm headphone output interface and a adapter (6.35mm to 3.5mm) for almost all of the headphone. High-quality aluminum alloy case, exquisite and durable.
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Alpha Design Labs Stride Portable Headphone Amplifier - Silver at 2954.00 HKD from TREOO.com
Alpha Design Labs Stride Portable Headphone Amplifier - Silver
HK$ 2,954.00
TREOO.com
It’s the age of personal, portable electronics; everyone carries their music with them. Whether you’re using iTunes for low-bit-rate downloads or high resolution music files just connect your computer to the Stride with one of our matching ADL Formula 2 USB cables or the new i-D35SP analog stereo cables. When you’re on the road plug your music player’s analog headphone output into the line input of the Stride and open the player’s volume to maximum and use the volume control on the Stride. For higher resolution all-digital signals simply connect the Stride to your computer’s USB port. The USB port charges the battery and you can listen to music while it’s charging!
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 Lear Fsm-02V2 Portable Headphone Amplifier - Silver at 3370.00 HKD from TREOO.com
Lear Fsm-02V2 Portable Headphone Amplifier - Silver
HK$ 3,370.00
TREOO.com
Lear Fsm-02V2 is an integrated high-fidelity grade headphone amplifier with flexible and outstanding functions! Fsm-02V2 is built with a total of 2 stage amplification circuits, plus an individual Mosfet Class-A channel; They are the individual hardware EQ (Equalizer) plus individual power amplification and the individual switchable Mosfet Class-A output stage. Each of the EQ and power amplification circuit has a 3 step control, which can be used to select the Crystal clear high, completely Bypass or powerful bass sound style and also the Low, Mid or High Gain for perfect matching with different impedance earphones and headphones. The Mosfet Class-A channel is switchable with the 3 step On/Off switch and output directly from an individual 3.5mm headphone jack. There are no OPAMPs or fixed circuit design which can work perfectly with all headphones, so we made the Fsm-02V2 to become Opamp exchangeable plus amplifier module exchangeable, it lets you to make your own choice of OPAMPs or fined tuned module selection , they give the best performance for any of your gears! The exchangeable power amplification stage means you can exchange Lear or 3rd party designed and made module (it can be an special tuned parallel Opamp module with own gain stage or the sound enhancement effect module ...etc.)to achieve their special goals! Fsm-02V2 supports an external power supply from Dc5V~18V, so it can easily become one of your high quality desktop amplifier, and also the built in Li-Poly rechargeable battery can be charged via USB and work at the same time! At least 6 different sound style inside 1 machine when using with any headphones (There are 2 EQ+Bypass for both Phone out and independent Class-A out) OPAMPs (1 for EQ stage , 1 for output amplification and 1 for Class-A) are exchangeable.Amplifier module is user exchangeable (Announced later on http://lear.hk),replace by Lear or 3rd party design! 3 step (Lo/Mi/Hi) Gain control for the best matching with both low and high impedance earphones/headphones. Independent Mosfet Class-A output for enjoy the "Tube Amp" sound at the independent 3.5mm output jack(Normal output and Class-A output are separated to 2 independent 3.5mm headphone jack and which is on/off selectable via a 3 step switch) Built in 3000mAh Li-poly rechargeable battery and charging via standard USB or Dc5V USB adapter. Support External power supply form Dc5V to 18V (Regulated power supply is recommended), simply change the Fsm-02V2 to a desktop grade amplifier. Optional Ultra Performance Module upgrade is available. Features of the UPM upgrade: 4 times output power than factory default. No more power hunger. Overall performance is almost reaching to the physical limit. Still near Zero Output Impedance. Drive any earphones/headphones to their original sound Reliable partner and reference source to the earphones/headphones R&D engineer. We used to R&D LEAR's earphones. Plug and Play design, no DIY technique required.
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 Schiit Audio Magni Desktop Headphone Amplifier at 1064.00 HKD from TREOO.com
Schiit Audio Magni Desktop Headphone Amplifier
HK$ 1,064.00
TREOO.com
Magni is the only fully discrete headphone amp under S$200 that is made in the Usa. Delivering 1.2W of power into 32 ohms, Magni is ready for virtually any headphone—including many hard-to-drive orthodynamic models. Discrete Design, DC Coupled If you ain’t into engineering, you can probably skip this section. But it’s important. All other amps in this price range use op-amps for gain. Not Magni. It uses a discrete gain stage design, with low-noise Jfet inputs, fast VAS transistors, and massive output power transistors. The result is greater current capability for higher power output. We’ve also used a DC servo to eliminate coupling caps from the signal path. From IEMs to Orthos Magni is quiet enough for many IEMs, but provides up to 1.2W into 32 ohms, which is plenty for many orthodynamic headphones. Magni is versatile enough to be a “do all” amplifier—it may be the only amp you ever need. Made in USA By “made in Usa;” we mean made in Usa. The vast majority of the total production cost of Magni—chassis; boards, assembly, etc—goes to US companies manufacturing in the US. Our board house is 20 minutes away from our office in Newhall. Our chassis guys are just over the hill in the Valley. Yep, the wall wart is from China, but there you go. There is some give and take to reach this price point. 2-Year Warranty Magni is covered by a limited warranty that covers parts and labor for two years. That’s 2x the coverage of most amps in this price range.
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 JDS Labs C5 Portable Headphone Amplifier - Red at 1626.00 HKD from TREOO.com
JDS Labs C5 Portable Headphone Amplifier - Red
HK$ 1,626.00
TREOO.com
Audibly Perfect Channel Balance Digital stepped attenuation with zero-crossing detection and 1dB attenuation steps provide smooth volume adjustment at all volume levels, even with sensitive IEMs. DC Coupled Signal Path C5 uses a purely resistive signal path. Thin film, 0.1% tolerance resistors ensure low noise and high channel accuracy. Dual LDO Power Regulation High performance audio starts with clean power. Supply rails are filtered by impressive Tps7A4700 and Tps7A3301 regulators to achieve ultra low supply noise at a constant output voltage of+/-7V. Smart USB Charging Powered by a large 1200mAh Li-Ion battery, C5 quickly charges from any USB port (computer, tablet charger, cell phone charger, etc.). A single LED indicates battery status: solid green while on, blinking while battery is low, or blue while charging.
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FiiO A3 Portable Headphone Amplifier - Silver at 501.00 HKD from TREOO.com
FiiO A3 Portable Headphone Amplifier - Silver
HK$ 501.00
TREOO.com
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NuForce Hap-100 Desktop Headphone Amplifier - Silver at 4495.00 HKD from TREOO.com
NuForce Hap-100 Desktop Headphone Amplifier - Silver
HK$ 4,495.00
TREOO.com
The Hap-100 is a preamp and headphone amplifier for the audio enthusiast for whom quality headphone listening is a priority. The HAP-100's innovative design offers features never before available at its modest price point. Most significantly, the Hap-100 shares technologies first employed in our flagship P-20 preamp, along with other audiophile-grade developments. As with the remarkable P-20, the Hap-100 exploits NuForce's most recent work in volume controls. At the unit's core is a switched-resistor ladder network of low-noise, thin-film resistors, one per volume setting, permitting discrete, high-resolution increments of 1dB for the HAP-100's one hundred volume steps.
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iriver Astell&Kern Ak380 Amp Docking Portable Headphone Amplifier - Black at 6183.00 HKD from TREOO.com
iriver Astell&Kern Ak380 Amp Docking Portable Headphone Amplifier - Black
HK$ 6,183.00
TREOO.com
The AK380's First Accessory, AMP The primary goal of Astell&Kern has always been to deliver the original sound. We're proud to introduce the Ak380 Amp, an amplifier that supports high-impedance headphones and high-gain output while remaining faithful to the original sound. Expansion-type amplifier with design unity. 3,400 mAh large-capacity battery. 8.1 Vrms high-gain balanced output. 4.1 Vrms unbalanced output. Introducing Ak380 Amp, the first accessory to complement the Ak380. High Gain The Ak380 AMP supports 8.1 Vrms output when connected via high-gain balanced output. High-gain output is four times greater than low-gain output and supports high-impedance headphones. To protect earphones/headphones during high output, the volume is automatically adjusted when the amp is powered on or the earphones/headphones are disconnected. Furthermore, the gain can be easily adjusted via the AK380's settings. 3,400 mAh Large-capacity Battery An amplifier, which increases audio output, consumes a great amount of energy. Thus, the Ak380 AMP features a 3,400 mAh large-capacity battery – identical to the one in the Ak380 itself - to support up to nine hours of continuous unbalanced-output playback.
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iriver Astell&Kern Ak380 Copper Amp Docking Portable Headphone Amplifier at 7870.00 HKD from TREOO.com
iriver Astell&Kern Ak380 Copper Amp Docking Portable Headphone Amplifier
HK$ 7,870.00
TREOO.com
A New Approach to Music, Ak380 AMP Copper Astell&Kern aims to match Ak380 Copper and deliver the acoustic characteristics of raw material, copper through AMP as well. Characteristics of raw material, Copper "Sound with a sense of depth" "Sound with a sense of weight" "Sound with a greater balance" Advantages of Ak380 AMP "Expandable AMP with a harmonious combination of raw material and design" "high Gain output of 8.1 Vrms" A combination of Ak380 Copper and AMP Copper extends the characteristics of raw material, copper to the player and AMP as well to deliver better sound quality than the old Ak380 duralumin and AMP aluminium combination.
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Audio-Technica Ath-Ha21 Desktop Headphone Amplifier at 1114.00 HKD from TREOO.com
Audio-Technica Ath-Ha21 Desktop Headphone Amplifier
HK$ 1,114.00
TREOO.com
Latest low cost desktop amplifier from audio technica, capable of 300mW output with a low harmonic distortion of 0.0008%, the Ath-Ha21 is a cost effective solution for your home amplifier needs.
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Pyle -Pro PHA40 4-Channel Stereo Headphone Amplifier at 130.00 HKD from Amazon
Pyle -Pro PHA40 4-Channel Stereo Headphone Amplifier
HK$ 130.00
Amazon
The new PHA40 from Pyle answers the need for a headphone distribution amplifier with professional specifications in a small package at an affordable price. The PHA40 features four headphone outputs on the front panel giving you an extremely powerful monitoring solution at an amazingly low price. Use it at the studio, for mixing, for practicing with your bandmates -- or for simply listening to audio without disturbing others. With the PHA40 you can watch movies, practice with your band, or do any other group activity in solitude.
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Shozy Px-M1 Portable Headphone Amplifier - Black at 2245.00 HKD from TREOO.com
Shozy Px-M1 Portable Headphone Amplifier - Black
HK$ 2,245.00
TREOO.com
This stylish and sleek portable headphone amp will breathe new life into your audiophile setup while on the go.
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Brainwavz Ap001 Portable Headphone Amplifier at 315.00 HKD from TREOO.com
Brainwavz Ap001 Portable Headphone Amplifier
HK$ 315.00
TREOO.com
The Brainwavz Ap001 is a ultra portable headphone amplifier that is designed to help deliver more power to your headphones, earphones or other portable speakers than your standard iPod, iPhone, Smartphone or MP3 player. The Ap001 has a powerful OP-Amp for clean volume & bass enhancement with Stereo Line-In leading to 2 stereo outputs, both with equal power. This stylish amplifier improves "Total Harmonic Distortion" (Thd) & noise performance with no degradation of low, or high frequency response. Wide ranging earphones & headphones support (16Ω - 150Ω) that will boost your original output by 120%. This small little guy is housed with built in, 120 mA Rechargeable Li-Battery for approx. 12 hours of use, plus smart features like detecting audio input to automatically turn the device on and off.
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 Shonyun Sh-306A Portable Headphone Amplifier at 1514.00 HKD from TREOO.com
Shonyun Sh-306A Portable Headphone Amplifier
HK$ 1,514.00
TREOO.com
The new and upgraded version Shonyun-306A up from the older Sh-306. The Sh-306A is a portable mini stereo headphone amplifier. Compared with the older version, the new 306A circuit architecture is similar but with numerous upgrades. The customised, high-quality and high-capacity lithium battery pack is not only high in capacity and discharge current, it is also able to provide plenty of power amplifier supply. The new model also sports a patch to the capacitor polarity line, greatly reducing the internal resistance to make the sound more clear, bright and powerful. The new 306A portable amplifier output has been increased by optimizing the power design. You can now better drive your big full-size headphones. In addition to better drivers, this portable amp also has a smart charge and discharge lithium battery monitoring circuit. Once the battery discharge goes below the preset voltage, the protection circuit will cut off power to ensure the safety of the device and headphones. And once it is charged full, the protection circuit will cut off the charging power supply immediataly for the same safety reasons. The Shonyun 306A uses the original imported Japanese Alps potentiometer push-pull feature, not only does it click with a beautiful sound, it is reliable and easy to use. Simply press the potentiometer knob to pop it out, then adjust the volume accordingly. Once the volume is set, you may press the knob again to retract it into the device for protection of the knob as well as a better appearance. An innovative design is such that the when a headphones is connected to the 3.5mm port, the circuit is closed and turns on the 306A; unplug the headphones and this switches off the 306A. The 306A is rated to driver 16 ohms to 300 ohms headphones and earphones. Some known models that work best when tested were the AKG K701, K601, Technica Ad900, Etymotic Er4S and Yuin Pk1. Headphones with higher impedance are perfect for the 306A, a good choice to make this amplifier perform to its best.
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FiiO E02i Rocky Portable Smartphone Headphone Amplifier - Silver at 226.00 HKD from TREOO.com
FiiO E02i Rocky Portable Smartphone Headphone Amplifier - Silver
HK$ 226.00
TREOO.com
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DIY HIFI Headphone Amplifier Single Power Supply PCB AMP Kit With Transparent Housing at 73.00 HKD from Banggood
DIY HIFI Headphone Amplifier Single Power Supply PCB AMP Kit With Transparent Housing
HK$ 73.00
Banggood
DIY Hifi Headphone Amplifier Single Power Supply PCB AMP Kit With Transparent Housing Specification: Working voltage: Dc12V-18V Use plug specifications: 5.5mm inner 2.1mm outer Input polarity: Inside positive, outside negative PCB board size: L = 83.1mm, width = 45mm Sound effects can play a unique sound Note: This is DIY Kit, you need to solder it by yourself! This version does includes the transparent housing. Package includes: 1 x DIY Hifi Headphone Amplifier Kit with transparent housing
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Audio-Technica At-Ha22Tube Headphone Amplifier at 2633.00 HKD from TREOO.com
Audio-Technica At-Ha22Tube Headphone Amplifier
HK$ 2,633.00
TREOO.com
The audio-technica At-Ha22Tube Headphone Tube Amplifier employs a vacum tube preamplifier resulting in a thick rich sound that only tube aplifiers can attain. Independent Left and Right vacuum tube circuit faithfully reproduces hi-resolution sound. Design employs a hybrid system using both the vacum tubes and semiconductor technology. Die-cast aluminum case suppresses unnecessary vibration and distortion. A convenient line-through output function allows the use of an AV system or other AV devices. Two headphones can be used at the same time using the front panels dual outputs.
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 Lehmann Audio Rhinelander Desktop Headphone Amplifier - Black at 3376.00 HKD from TREOO.com
Lehmann Audio Rhinelander Desktop Headphone Amplifier - Black
HK$ 3,376.00
TREOO.com
Despite all the down-to-earthness of an entry-level model – this ambitious headphone amplifier will open up a whole new world of musical enjoyment to you. The Rhinelander stands fully in the high-end tradition of the Lehmannaudio products. With its superior set of features it shows a marked contrast to other devices in its price class. If you have taken a sceptical stance towards headphones so far, the Rhinelander will fully convince you of the contrary. From now on using headphones will never again be a compromise aiming to keep domestic peace, but a pleasant way to fully indulge in your passion for music. Ultra low-noise, transparent and with an impressive performance potential … an addictive sound experience is awaiting you. "Perhaps, more than with any affordable headphone amp we can recall, the sound just keeps you there listening after bedtime and you’ll find yourself enjoying familiar recordings as never before." — Hi-Fi Choice Your first step into the world of headphone amps The sonic kinship with the Linear reference device is due to the specially selected, high-grade components and sophisticated circuit design. The Rhinelander has a well dimensioned, discrete class A solid-state output stage with no overall negative feedback, which holds sufficient power reserves available for most common headphones and also gives your favourite sounds an impressive clarity. An impressive all-rounder Moreover, our entry-level model is equipped with plenty of other audiophile components: for instance, we have chosen low-loss MKP capacitors for the audio path and a double-sided pc board for an optimum layout. Low ESR electrolytic capacitors in the power supply, an integrated voltage gain stage and a Neutrik headphone socket serve to optimise the audiophile device. The volume controls are handpicked to ensure a high synchronism and to keep localisation as stable as on the recording. In addition the Rhinelander features two inputs plus an input selection via a high-quality relay. By the way, it also knows how to delight as a high-class single-source preamplifier. The single-source preamp mode is active as default setting. Such an elaborate construction with exquisite components is unique in a headphone amplifier of this price range.
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FiiO E12Diy Limited Edition Portable Headphone Amplifier - Silver at 2245.00 HKD from TREOO.com
FiiO E12Diy Limited Edition Portable Headphone Amplifier - Silver
HK$ 2,245.00
TREOO.com
Background: The release of FiiO E12 (flagship of portable amplifier) was welcomed by the market. However, for some customers who are eagerly to try on something new, the original operational amplifier--OP AMP (Opa1611+Lme49600) still can’t make them satisfied. At present, FiiO Company is not in the right place to offer customized service, and different combination of the OP AMP can hardly help the customers to find the most favorite one through the objective sound feelings. Yet, in order to show our appreciation to those old customers and bring more fun in enjoying music, we specially invest effort in developing the DIY version based on E12. We are expecting to offer more options to our customers with this higher playability platform. Quantity: 2000pcs at its most worldwide. (The program would be terminated if the reservations run less than 500.) Target customers: The following requirements are not non-negotiable, but it is Strongly suggested for those who are ready to reserve to read each item carefully in order to avoid any unpleasant purchase experience. 1. Have certain operational ability; Since the customers are required to replace the OP AMP with the help of our manual, we don’t suggest average user to purchase in order to avoid burnout caused by faulty operation. 2. Old users of FiiO who know well of its products and service; Owing to the high cost of the high quality audio OP (the supplier has no stocks available), we can only move to production process after got the Full Payment of reservation. The production cycle would be pretty long, and for now we are unable to promise a definite delivery date. That’s why we don’t suggest users to buy this item when they had never bought any FiiO products before, since we are afraid they would cancel the reservation due to impatience or lack of trust. 3. Willing to accept the terms without after-sales service; For the DIY version, since it is practical to open the case to replace the OP by the end-user, we can hardly tell whether the issue is out of quality or man-made problem. In order to avoid unpredictable loss, we would seal the fixed screws before sending out, once found opened, we would not provide related after-sales service. Features of the E12 Diy: 1. On one hand, reserves the fine and meticulous workmanship of its commercial edition; on the other hand, offers more different timbre and fun with different OP combination. 2. Canceled the Bass and Crossfeed function, which offers larger space regarding the inner wiring layout, thus get its performance greatly improved. 3. Reserves the excellent high voltage power supply circuit of E12, ensure to make the most of its high quality audio OP. 4. Reserves all kinds of protection circuits and USB smart fast charging of E12. As to normal DIY amplifier, audiophiles would not pay much attention to this kind of design, and lack conditions to use the MCU to fulfill this function. 5. All the components are purchased from the first-class agent in China of companies like TI, Adi, which definitely prevent getting fake products in the purchase of DIY
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 2017 New Wireless Bluetooth Headphone Amplifier Noise Cancelling Stereo Gaming Music Headset Support TF Card FM for PC Moible Phone at 211.00 HKD from Mini In The Box
-15%
2017 New Wireless Bluetooth Headphone Amplifier Noise Cancelling Stereo Gaming Music Headset Support TF Card FM for PC Moible Phone
HK$ 211.00 HK$ 250.00
Mini In The Box
Model:STN-17 ; Brand:Neutral Product; Type:Headband; General Use:Mobile Phone Cellphone; Function:Volume Control,DJ,With Microphone,Bluetooth,Hi-Fi,Noise-Cancelling,Sports,Gaming; Communication:Wireless Bluetooth; Connectors:3.5mm; Material:Rubber,Polycarbonate; Color:Black; Driver Type:Moving coil; Sound Channel:2.1; Bluetooth Version:V3.0; Production mode:External produce
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Grado RA1 Reference Desktop Headphone Amplifier (Ac) at 4101.00 HKD from TREOO.com
Grado RA1 Reference Desktop Headphone Amplifier (Ac)
HK$ 4,101.00
TREOO.com
After years of relying on other equipment to drive Grado headphones, you can now listen and enjoy headphones through our new Grado Reference Headphone Amp, the Ra1. Designed for state-of-the-art performance and specifically to play Grados, the new RA1 will allow you to hear your headphones like never before. This new amp is machined from a solid block of mahogany and measures 5" wide, 5 1/2" deep and 1 1/2" tall and weighs in at 12 oz. The RA1 is available in an AC version or can be powered by two 9-Volt batteries that will drive the amp for 40 to 50 hours of listening pleasure. And the sound? Just like all Grados: warm, smooth, full-bodied, non-fatiguing and rich. Hook it up to any line source (portable or in-home) and drive your Grado headphones to their full potential. The Grado Labs RA1 headphone amp was designed specifically to drive Grado headphones and it does that quite decently indeed. It's recommended for use with fairly efficient (low impedance) headphones like the 32-Ohm Grado Labs headphone line. This is the 'AC-power' Grado RA1 (Ac) unit. The battery-powered amp is also available. The RA1 design is small and fairly light for portable use, although that trad Grado wood-block design makes it somewhat bulky for easy travel and mobile listening on the fly. It's a very simple yet effective & the front panel sports a volume control, an on/off LED light, and a full-size 1/4" headphone jack. The rear of the amp provides an on/off switch and one pair of left/right RCA inputs. One bummer: the battery-powered Ra-1 does not operate with a wall wart/AC adapter.
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 JDS Labs C5 Portable Headphone Amplifier - Slate at 1626.00 HKD from TREOO.com
JDS Labs C5 Portable Headphone Amplifier - Slate
HK$ 1,626.00
TREOO.com
Audibly Perfect Channel Balance Digital stepped attenuation with zero-crossing detection and 1dB attenuation steps provide smooth volume adjustment at all volume levels, even with sensitive IEMs. DC Coupled Signal Path C5 uses a purely resistive signal path. Thin film, 0.1% tolerance resistors ensure low noise and high channel accuracy. Dual LDO Power Regulation High performance audio starts with clean power. Supply rails are filtered by impressive Tps7A4700 and Tps7A3301 regulators to achieve ultra low supply noise at a constant output voltage of+/-7V. Smart USB Charging Powered by a large 1200mAh Li-Ion battery, C5 quickly charges from any USB port (computer, tablet charger, cell phone charger, etc.). A single LED indicates battery status: solid green while on, blinking while battery is low, or blue while charging.
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FiiO E11 Kilimanjaro Portable Headphone Amplifier (Demo Set) at 501.00 HKD from TREOO.com
FiiO E11 Kilimanjaro Portable Headphone Amplifier (Demo Set)
HK$ 501.00
TREOO.com
If you are looking for an attractive and powerful portable headphone amplifier, FiiO, manufacturer of no-nonsense headphone amps for a reasonable price, seems to have topped themselves with the announcement the E11 portable amp: this thing looks really good. The E11 portable Headphone Amplifier comes in an aluminum alloy case with a black/silver color scheme. The way the volume knob is protected in the drawings is rather ingenious. The rest of the design reminds us of the Cowon D2. The E11 sports an easily user-replaceable standard cellphone battery, the usual FiiO bass boost, three gain levels, and a standard mini-USB port for charging. The E11 Portable Headphone Amplifier is powered by a 750mAh lithium-ion battery pack that can provide up to 10 hours of operating time and is compatible with Nokia Bl-5B. Demo set has very minor cosmetic scratches on top. Comes with 2 additional batteries and full 1 year warranty.
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Sony Sony PHA-3 High-Resolution Audio Headphone Amplifier at 5920.00 HKD from YesAsia
Sony Sony PHA-3 High-Resolution Audio Headphone Amplifier
HK$ 5,920.00
YesAsia
Sony PHA-3 High-Resolution Audio Headphone Amplifier
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Audio-Technica AT-PHA100 Headphone Amplifier at 3529.00 HKD from YesAsia
Audio-Technica AT-PHA100 Headphone Amplifier
HK$ 3,529.00
YesAsia
Audio-Technica AT-PHA100 Headphone Amplifier
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Headphone Amplifiers Hong Kong

Amp up your Audio

Most mainstream headphones that are targeted towards the mainstream consumers come with many different sound qualities, and they often don’t require a lot of power to drive them. Just plug them into your computers or smartphones and you’ll be able to listen just fine. If you want to have some high-fidelity audio in your headphones however, they’re a whole different ballgame altogether.

High-end headphones are expensive, but they sound exceptionally good. While they delivery fantastic sound quality, expensive headphones tend to require a little bit more in terms of power; the typical computer and audio jacks on smartphones are usually not enough to power these headphones. That is where these headphone amplifiers come into play, giving these high-end headphones that much-required power boost.

The many different headphone amplifiers

Headphone amplifiers come in a variety of different shapes and sizes – as well as specifications and pricing. However, whenever people mention headphone amplifiers, it is commonly referring to portable amplifiers that can be taken around to be paired with digital audio players and smartphones. There are also desktop amplifiers that are made to power headphones at home, those are significantly larger and tend to require constant power supply rather than operate on a battery like most portable amplifiers do.

How to know if your headphones need an amplifier

There are several different ways to know if your headphones could do with the help of a headphone amplifier, and these are sometimes also conditional; some headphones may seem like they need an amp, but they don’t.

  • Your headphones sound quiet when plugged into your device, even at higher volumes.
  • Your headphones have a high impedance of 32 ohms or more.

Those two are the most common signs that your headphones could probably do with an amplifier. The issue with quiet headphones is more prevalent when it comes to mobile devices such as your music player or smartphone. The specifications of your headphone are also commonly listed on the back of the packaging where you will be able to see if it has a high impedance.

One thing to keep in mind that most in-ear headphones or earphones typically do not require the use of a headphone amplifier because they do not require much power. Most earphones are also optimized for use with mobile devices.

Great brands of headphone amplifiers in Hong Kong

Like the headphones themselves, there are many different brands of headphone amplifiers, as well as different price points depending on the specifications and components in the amplifiers. Here are some great brands of headphone amplifiers:

Fiio

Fiio is a rather famous headphone amplifier brand – largely because of their excellent value. Most Fiio products aren’t expensive, but they deliver fantastic performance in comparison to the other brands out there.

AudioQuest

AudioQuest is famous for its DragonFly DAC/AMP that plugs directly into the USB ports of your computers. The DragonFly DAC/AMP gives your headphones the much needed power and also delivers cleaner and more detailed sound thanks to the built-in DAC.

Sony

Sony themselves are one of the pioneers of high-fidelity audio to mainstream consumers. They have a large line of music players as well as headphone amplifiers that may be a little on the expensive side of things, but deliver on all fronts.


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