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19 products found
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 HIFI mobile phone mobile phone with a special magic stick amp boost headset audio amplifier hugethrust improve the ear can hear the sound at 172.00 HKD from Mini In The Box
−33%
HIFI mobile phone mobile phone with a special magic stick amp boost headset audio amplifier hugethrust improve the ear can hear the sound
HK$ 172.00 HK$ 258.00
Mini In The Box
Type:Headphone Amplifier; Listing Date:06/15/2017
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Yaqin Yaqin Ms-23B Tube Phono Preamplifier Stage MM Riaa Phonograph Pre-amp Stereo HiFi Audio Amplifier Amp at 1408.00 HKD from Tomtop
Yaqin Yaqin Ms-23B Tube Phono Preamplifier Stage MM Riaa Phonograph Pre-amp Stereo HiFi Audio Amplifier Amp
HK$ 1,408.00
Tomtop
Features: Tube pre-amplifier designed for vinyl disk phonograph(RIAA). Adopts feedback equalizer and frequency response is in conformity to Riaa standard. Two 12Ax7 tube with DC power supply filaments for optimal hum and noise reduction. Durable aluminum alloy housing with tube protective casing and steel heavy duty chassis. Power transformer with 0.35mm stalloy shell and high-strength OFC enamelled wire. With RCA input output jacks and GND interface.
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 HXJ8002 Mini Audio Amplifier Module at 24.00 HKD from Mini In The Box
−40%
HXJ8002 Mini Audio Amplifier Module
HK$ 24.00 HK$ 39.00
Mini In The Box
Model:HXJ8002 ; Type:Module; Module Function:Board; For:Universal; Net Dimensions(cm):2.01.40.3; Shipping Weight(kg):0.002; Net Weight(kg):0.005; Listing Date:05/20/2014
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 60W 12V Hi-Fi Digital Stereo Audio Amplifier Volume Control Board at 75.00 HKD from Banggood
60W 12V Hi-Fi Digital Stereo Audio Amplifier Volume Control Board
HK$ 75.00
Banggood
60W 12V Hi-Fi Digital Stereo Audio Amplifier Volume Control Board Feature: Weight: 154g PCB size: 9cm x 13cm Input sensitivity: AT1KHz Max output power: Stereo 60W Supply input: DC 12V-15V (min 3A) Package included: 1 x Audio Power Amplifier
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 Irs2092S Mono-Channel Digital Audio Amplifier Class D Hifi High Power Amp Board 500W at 180.00 HKD from Tomtop
Irs2092S Mono-Channel Digital Audio Amplifier Class D Hifi High Power Amp Board 500W
HK$ 180.00
Tomtop
Features: High output power digital amplifier, mono channel. Great sound quality: use professional amplifier chip and audio components, less distortion. Easy heat dissipation: with a fan and a radiator for heat dissipation at the same time. Stable and reliable performance: with high frequency and low resistance capacitance, more reliable operation. Compact size, easy to install. Note: 1. This is a pure power amplifier board, the sensitivity of the input signal is 1.5V rms, if your input signal voltage can't reach this value, it is recommend to add preamp. 2. Rated supply voltage is 65V, range from 58 to 70V, do not over 70V! Positive and negative should be correct. 3. Recommended power supply is 65V. 4. Recommended 4-8Ω / 10-18inch speaker. 5. Carefully check and ensure the wiring is correct before power connection.
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 Tpa3110 2*15W Digital Stereo Wireless Bluetooth Audio Amplifier Power Amp Board at 73.00 HKD from Tomtop
Tpa3110 2*15W Digital Stereo Wireless Bluetooth Audio Amplifier Power Amp Board
HK$ 73.00
Tomtop
Features: Sound quality is very good by using this module. Bluetooth wireless audio input and the max. receiving distance is 10m. Power output: Two Channel 15W + 15W. Applicable speaker impedance: 4/6/8/10 ohm.
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 Stereo Audio Amplifier Module Wireless Bluetooth Receiver USB Power Support TF AUX at 40.00 HKD from Banggood
Stereo Audio Amplifier Module Wireless Bluetooth Receiver USB Power Support TF AUX
HK$ 40.00
Banggood
Features: 1. Used for DIY sound modification,can make your speaker and headphone upgrade to be high class Blutooth audio equipment with Wireless Bluetooth music receive 2. Support wireless Bluetooth audio receiving 3. Support USB and TF card play,support Wma/mp3/wav decode 4. Support AUX input 5. With EQ sound effect function 6. Compatible for Bluetooth 3.0/4.0 and 4.1 version 7. Support HSP/HFP.Support Bluetooth hand-free call function 8. Support communication with Android APP through SPP protocol 9. Support L2Cap/a2Dp(Avctp/avdtp/avrcp) 10. Easy pairing, support automatically connect back, low power mode, sniff mode, stop mode 11. Size: 48mm x 60mm Package includes 1 x Wireless Bluetooth Amplifier Adapter
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 LM386 Chip 20 Gain Audio Amplifier Module – Blue at 24.00 HKD from Mini In The Box
−40%
LM386 Chip 20 Gain Audio Amplifier Module – Blue
HK$ 24.00 HK$ 39.00
Mini In The Box
Model:LDTR-222010; Type:Sensor; Sensor Function:Sound; Listing Date:09/14/2015
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 Lm386 Chip 200 Gain Audio Amplifier Module - Blue for Arduino DIY at 18.00 HKD from Tomtop
Lm386 Chip 200 Gain Audio Amplifier Module - Blue for Arduino DIY
HK$ 18.00
Tomtop
Features: Onboard Lm386 chip. 200 Gain of circuit design. Onboard speaker terminal blocks. Onboard 10K adjustable resistance, you can adjust the volume of amplification. Chips are pin has been drawn, you can directly input audio signal.
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 FM-103 Car Stereo Audio Amplifier with FM Function-Black at 114.00 HKD from Mini In The Box
−36%
FM-103 Car Stereo Audio Amplifier with FM Function-Black
HK$ 114.00 HK$ 180.00
Mini In The Box
Support Format:MP3; Full FM Frequency (MHz):87.5~108.00 MHz; Power:DC 12V; Max. Input Power:200; Listing Date:11/07/2014
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 TK2050 50W+50W Audio Amplifier Board T Class Dual Channel HIFI Stereo at 188.00 HKD from Banggood
TK2050 50W+50W Audio Amplifier Board T Class Dual Channel HIFI Stereo
HK$ 188.00
Banggood
Description: Work mode: T class Output power: 50 W x 2 Audio Input: low signal input Suitable Music Box: Any 4-8 ohm Efficiency: 92% Switching frequency: 650 KHz Working voltage: DC 12V ~ DC 20V (recommended voltage DC 19V) Static Current: 10~95 mA PCB Size(L*W*H): 95 x 65 x 15 mm Features: 1.Class T digital amplifier board, non generic class AB as Tda7492, Tpa3123 unmatched, distortion and power are not in an order of magnitude. 2.Class T amplifier class AB amplifier sound quality comparable to both new and efficient Class D amplifier, using original Class-T Digital Tk2050 chip designed with good sound quality, low distortion, high efficiency, good use of materials, small size, appearance generous. 3.In order to guarantee high-quality sound, the use of imported audio-specific capacitors, such as imported Ero, Elna Silmic Ⅱ ruby. Class T amplifier technology highlights: 1.Compared with traditional high class AB audio amplifier, power amp or even catch up with fever. 2.Single supply design, wide DC voltage power supply. 3.The use of a fever-level audio input coupling capacitor, the sound quality is more beautiful. Package Included: 1 x Amplifier Board
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 Mini Digital Audio Amplifier 10W10W / 2 Channel AMP/ DIY Module Class D HIFI 2.0 (DC12V) at 47.00 HKD from Mini In The Box
−33%
Mini Digital Audio Amplifier 10W10W / 2 Channel AMP/ DIY Module Class D HIFI 2.0 (DC12V)
HK$ 47.00 HK$ 71.00
Mini In The Box
Type:Accessories; Accessories Function:Power; Net Dimensions(cm):4.04.01.8; Shipping Weight(kg):0.024; Net Weight(kg):0.021; Listing Date:07/25/2014
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 NiZHi Bluetooth Speaker Micro Sd/tf Card USB Disk Music Player Mp3/4 Audio Amplifier FM Radio at 154.00 HKD from Tomtop
NiZHi Bluetooth Speaker Micro Sd/tf Card USB Disk Music Player Mp3/4 Audio Amplifier FM Radio
HK$ 154.00
Tomtop
Features: Supports micro SD / TF card, USB flash disk, FM Radio, Bluetooth hands-free call function, etc. HiFi clear loud sound output with earphone output port. Universal for all Bluetooth-enabled devices such as, for iPhone iPad Samsung galaxy S4 / S3 / Note 2, other Android smartphones, tablet PCs, etc. Also supports Line IN function, receiving audio source from Mp3, Mp4, tablet PC, Notebook, for iPod, for iPhone, etc. Built-in MIC enables you to make a handsfree call, let you stay away from radiation. Build-in high sensitivity FM radio frequency module, the signal is excellent. Powered by built-in high capacity rechargeable battery, support long time music playing. Compact and portable design, perfect for both home use and travel use.
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 386 Mini Audio Amplifier Module - Light Blue (5~12V) at 32.00 HKD from Mini In The Box
−33%
386 Mini Audio Amplifier Module - Light Blue (5~12V)
HK$ 32.00 HK$ 47.00
Mini In The Box
Type:Accessories; Accessories Function:Power; For:For BeagleBone; Listing Date:11/06/2014
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 TDA2030A 2.1 Stereo Amp 3 Channel Subwoofer Audio Amplifier Circuit Board at 118.00 HKD from Mini In The Box
−34%
TDA2030A 2.1 Stereo Amp 3 Channel Subwoofer Audio Amplifier Circuit Board
HK$ 118.00 HK$ 180.00
Mini In The Box
Model:TDA2030A; Cable Length(cm):30; For:Electronics Components; Net Dimensions(cm):14.57.85.5; Shipping Weight(kg):0.157; Net Weight(kg):0.157; Listing Date:10/10/2013
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 High-Power Audio Amplifier Construction Manual at 363.00 HKD from Kobo
−9%
High-Power Audio Amplifier Construction Manual
HK$ 363.00 HK$ 403.00
Kobo
Design and build awesome audio amps. Amateur and professional audiophiles alike can now design and construct superior quality amplifiers at a fraction of comparable retail prices with step-by-step instruction from the High-Power audio Amplifier Construction Manual. Randy Slone, professional audio writer and electronics supply marketer, delivers the nuts-and-bolts know-how you need to optimize performance for any audio system-from home entertainment to musical instrument to sound stage. Build a few simple projects or delve into the physics of audio amplifier operation and design. This easy to understand guide walks you through: Building the optimum audio power supply; Audio amplifier power supplies and construction: Amplifier and loudspeaker protection methods; Stability, distortion, and performance; Audio amplifier cookbook designs; Construction techniques; Diagnostic equipment and testing procedures; Output stage configurations, classes, and device types; Crossover distortion physics; Mirror-image input stage topologies.
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 High-Power Audio Amplifier Construction Manual at 339.00 HKD from Kobo
−19%
High-Power Audio Amplifier Construction Manual
HK$ 339.00 HK$ 424.00
Kobo
Design and build awesome audio amps. Amateur and professional audiophiles alike can now design and construct superior quality amplifiers at a fraction of comparable retail prices with step-by-step instruction from the High-Power audio Amplifier Construction Manual. Randy Slone, professional audio writer and electronics supply marketer, delivers the nuts-and-bolts know-how you need to optimize performance for any audio system-from home entertainment to musical instrument to sound stage. Build a few simple projects or delve into the physics of audio amplifier operation and design. This easy to understand guide walks you through: Building the optimum audio power supply; Audio amplifier power supplies and construction: Amplifier and loudspeaker protection methods; Stability, distortion, and performance; Audio amplifier cookbook designs; Construction techniques; Diagnostic equipment and testing procedures; Output stage configurations, classes, and device types; Crossover distortion physics; Mirror-image input stage topologies.
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*Prices updated on 21 Jul 2017

Audio, Speaker, and Headphone Amplifiers Hong Kong

To truly appreciate and understand a great pair of hi-fi speakers or headphones require the user to have more than just the speakers or headphones themselves. Aside from having a keen sense of sound, the listener would also need to have the proper equipment to power the speakers or headphones. This is because these higher end high fidelity speakers and headphones typically have a higher power requirement compared to lower end headphones or headphones that are mainly targeted towards the average consumer.

A Power Boost to your Audio

Audio amplifiers function as their name suggests: they amplify power. These devices channel more power through to your headphones or speakers, filling up the gaps in power where your source – where the sound comes from, usually your computer or TV – is unable to deliver enough power to your equipment. When there is not enough power to power a pair of headphones or speakers, the sound comes out soft and difficult to hear; it can also affect the sound of your equipment as it is unable to bring out the full potential of your headphones or speakers.

There are several easy ways to roughly tell if your speaker or headphones require an amplifier. On the packaging of headphones, you will see a term ‘Impedance’ on the specification list. A common headphone will have a very low impedance ranging from 8 to 16 ohms, which can be powered by your computer and smartphones easily, but typically anything more than that could do with a little help from an amplifier.

Speaker Amplifiers Hong Kong

Most common everyday speakers, especially those meant for computers, are called ‘active speakers’; this means that the speakers come with a built-in amplifier. For those that require an external amplifier are called passive speakers, and are usually much better in sound. Speaker amplifiers such as those from Yamaha or Denon usually take up a little bit more space because it is usually made to power very large passive speakers at home. Pairing the right speakers with the right amplifiers can properly unlock the full potential of your speakers for maximum enjoyment.

Headphone Amplifiers Hong Kong

Headphone amplifiers generally have two different uses: those set at home for listening on much higher-end headphones, and the portable ones for the headphone listeners on the road. Home headphone amplifiers from makers such as Sony are similar to the speaker amplifiers, being large and requiring a direct-current power.

Portable Amplifiers Hong Kong

Portable ones come in various sizes, from being as small as an iPod Nano to a larger size as that of a smartphone – Fiio, in particular, is a brand that makes a number of these. Portable amplifiers are powered by a battery and is commonly attached to digital music players or smartphones to provide an additional boost in power for listening to music on the go.


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