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An audio power amplifier (or power amp) is an electronic amplifier that amplifies low-power electronic audio signals such as the signal from radio receiver or electric guitar pickup to a level that is high enough for driving loudspeakers or headphones. Audio power amplifiers are found in all manner of sound systems including sound reinforcement, public address and home audio systems and musical instrument amplifiers like guitar amplifiers. It is the final electronic stage in a typical audio playback chain before the signal is sent to the loudspeakers. The preceding stages in such a chain are low power audio amplifiers which perform tasks like pre-amplification of the signal (this is particularly associated with record turntable signals, microphone signals and electric instrument signals from pickups, such as the electric guitar and electric bass), equalization (e.g., adjusting the bass and treble), tone controls, mixing different input signals or adding electronic effects such as reverb. The inputs can also be any number of audio sources like record players, CD players, digital audio players and cassette players. Most audio power amplifiers require these low-level inputs, which are line level. While the input signal to an audio power amplifier, such as the signal from an electric guitar, may measure only a few hundred microwatts, its output may be a few watts for small consumer electronics devices, such as clock radios, tens or hundreds of watts for a home stereo system, several thousand watts for a nightclub's sound system or tens of thousands of watts for a large rock concert sound reinforcement system. While power amplifiers are available in standalone units, typically aimed at the hi-fi audiophile market (a niche market) of audio enthusiasts and sound reinforcement system professionals, most consumer electronics audio products, such as clock radios, boomboxes and televisions have relatively small power amplifiers that are integrated into the product.
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Mini TPA3116 Stereo Digital Amplifier HiFi Class D 2.0 Channel Desktop Audio Amp
Mini TPA3116 Stereo Digital Amplifier HiFi Class D 2.0 Channel Desktop Audio Amp
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Ends:
Dec 10, 09:09 am
400W 12V Bluetooth HiFi Power Amplifier Mini Audio Digital Stereo FM AMP Remote
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Dec 20, 09:01 am
5000W bluetooth Amplifier 5.0 HiFi Stereo Audio Power Amp 2 Channel Home/Car US
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54.49 USD
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Nov 30, 11:35 am
Bluetooth 2.1 Channel Subwoofer Bass Class D Mini Hi-Fi Amplifier Audio Receiver
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Portable HiFi headphone amplifier 3.5mm stereo audio impedance 16-300Ω headphone
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TPA3116 Bluetooth HiFi Power Subwoofer 2.1 Channel Stereo Audio Amplifier Board
TPA3116 Bluetooth HiFi Power Subwoofer 2.1 Channel Stereo Audio Amplifier Board
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23.99 USD
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5800W 4 Channel Car Amplifier HiFi Stereo Audio Super Bass Power Amp Device
5800W 4 Channel Car Amplifier HiFi Stereo Audio Super Bass Power Amp Device
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BOSS Audio Systems R1002 2 Channel Car Amplifier ? 200 Watts Max Power, 2/4 Ohm
BOSS Audio Systems R1002 2 Channel Car Amplifier ? 200 Watts Max Power, 2/4 Ohm
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6800W 4 Channel Car Amplifier Powerful Stereo Audio Super Bass Subwoofer ClassAB
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51.29 USD
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Blaupunkt AMP1804BT Car Audio 4-Channel Class D 1600W Amplifier w/ Bluetooth NEW
Blaupunkt AMP1804BT Car Audio 4-Channel Class D 1600W Amplifier w/ Bluetooth NEW
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89.89 USD
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Sunbuck 2500W bluetooth 5.0 HiFi Power Amplifier 5 Channel Home Stereo Audio  FM
Sunbuck 2500W bluetooth 5.0 HiFi Power Amplifier 5 Channel Home Stereo Audio FM
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45.49 USD
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400W Digital Car Amplifier bluetooth 5.0 2Channel HIFI Audio Stereo Amp FM  MP3
400W Digital Car Amplifier bluetooth 5.0 2Channel HIFI Audio Stereo Amp FM MP3
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ALPINE BBX-F1200 CAR AUDIO 4-CHANNEL BRIDGEABLE AMP AMPLIFIER 600 WATT RMS MAX
ALPINE BBX-F1200 CAR AUDIO 4-CHANNEL BRIDGEABLE AMP AMPLIFIER 600 WATT RMS MAX
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149.69 USD
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Bluetooth 5.0 Stereo Audio Amplifier Receiver 2 Channel Class D Mini Hi-Fi Amp
Bluetooth 5.0 Stereo Audio Amplifier Receiver 2 Channel Class D Mini Hi-Fi Amp
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32.99 USD
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Nov 29, 02:28 am
5 Channel 4000W bluetooth Amplifier Home Stereo Audio Power Amp MIC FM w/Remote
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Planet Audio 2400W RMS MAX 4 Channel Full Range Class A/B Amplifier PL2400.4 AMP
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129.99 USD
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Sunbuck 2500W HiFi bluetooth Power Amplifier 5 Channel Stereo Audio FM Amp
Sunbuck 2500W HiFi bluetooth Power Amplifier 5 Channel Stereo Audio FM Amp
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49.99 USD
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Dec 09, 02:15 am
200W Mini HiFi MP3 Radio Car Home Audio Stereo Bass Speaker Booster Amplifier
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14.45 USD
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NEW Pyle PTA44BT 4-Channel 500W Bluetooth Home Audio Amplifier - Black
NEW Pyle PTA44BT 4-Channel 500W Bluetooth Home Audio Amplifier - Black
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33.00 USD
Ends:
Nov 28, 01:36 am
Sunbuck 5000W bluetooth HiFi Power Amplifier Audio 2 Channel Car Stereo Audio
Sunbuck 5000W bluetooth HiFi Power Amplifier Audio 2 Channel Car Stereo Audio
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52.99 USD
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Dec 11, 08:34 am
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