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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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Technical Pro AX5000 5000 Watt 2 Channel 2U DJ Power Amplifier w USB, SD, EQ
Technical Pro AX5000 5000 Watt 2 Channel 2U DJ Power Amplifier w USB, SD, EQ
Price:
149.95 USD
Ends:
Aug 12, 08:13 pm
Adcom gfa-555 power amplifier- Not Working
Adcom gfa-555 power amplifier- Not Working
Price:
200.00 USD
Ends:
Aug 11, 06:23 pm
2000W bluetooth Home Stereo Power Amplifier 5 Channel Receiver Amp Hi-Fi FM SD
2000W bluetooth Home Stereo Power Amplifier 5 Channel Receiver Amp Hi-Fi FM SD
Price:
48.49 USD
Ends:
Aug 08, 02:30 am
2000W bluetooth Home Stereo Power Amplifier 5 Channel Receiver Amp Hi-Fi FM SD
2000W bluetooth Home Stereo Power Amplifier 5 Channel Receiver Amp Hi-Fi FM SD
Price:
48.39 USD
Ends:
Aug 23, 10:10 am
24 Bids
Outlaw audio Model 5000 multi channel power amplifier (5 X 120 watts)
Outlaw audio Model 5000 multi channel power amplifier (5 X 120 watts)
Price:
255.00 USD
Ends:
Aug 09, 01:00 am
2000Watts 5 Channel Bluetooth 5.0 Home Stereo Power Amplifier HiFi Amp USB SD FM
2000Watts 5 Channel Bluetooth 5.0 Home Stereo Power Amplifier HiFi Amp USB SD FM
Price:
69.99 USD
Ends:
Aug 27, 10:27 am
NAD Model 2200 Stereo Power Amplifier
NAD Model 2200 Stereo Power Amplifier
Price:
283.00 USD
Ends:
Sep 03, 10:55 pm
Emotiva BasX A-500 5 Channel Power Amplifier; A500; Black
Emotiva BasX A-500 5 Channel Power Amplifier; A500; Black
Price:
399.00 USD
Ends:
Sep 04, 06:31 pm
12 Bids
Emotiva BasX A-500 Five Channel Power Amplifier
Emotiva BasX A-500 Five Channel Power Amplifier
Price:
360.00 USD
Ends:
Aug 08, 07:27 pm
Technical Pro AX3000 3000 Watt 2 Channel 2U DJ Power Amplifier w/ 3 Band EQ
Technical Pro AX3000 3000 Watt 2 Channel 2U DJ Power Amplifier w/ 3 Band EQ
Price:
134.95 USD
Ends:
Aug 31, 08:21 pm
Onkyo Stereo Power Amplifier M-5160 Nice condition
Onkyo Stereo Power Amplifier M-5160 Nice condition
Price:
129.00 USD
Ends:
Sep 04, 04:14 pm
Technical Pro AX2000 2-Channel 2000 Watt Professional Power Amplifier Rackmount
Technical Pro AX2000 2-Channel 2000 Watt Professional Power Amplifier Rackmount
Price:
109.95 USD
Ends:
Aug 31, 08:21 pm
18 Bids
Adcom GFA-5800 2 Channel Power Amplifier / Nelson Pass Design
Adcom GFA-5800 2 Channel Power Amplifier / Nelson Pass Design
Price:
440.00 USD
Ends:
Aug 09, 10:51 pm
ADCOM GFA-555 Power Amplifier TECH TESTED AND WORKING!
ADCOM GFA-555 Power Amplifier TECH TESTED AND WORKING!
Price:
400.00 USD
Ends:
Sep 01, 04:28 pm
6 Bids
Emotiva XPA-2 GEN 3 Stereo Amplifier
Emotiva XPA-2 GEN 3 Stereo Amplifier
Price:
780.00 USD
Ends:
Aug 05, 02:57 pm
Fostex Lab Series 600 Vintage Power Amplifier
Fostex Lab Series 600 Vintage Power Amplifier
Price:
495.00 USD
Ends:
Sep 03, 06:11 pm
2 Channel 8500 Watts Professional Power Amplifier AMP Stereo GTD-Audio T-8500
2 Channel 8500 Watts Professional Power Amplifier AMP Stereo GTD-Audio T-8500
Price:
179.00 USD
Ends:
Aug 28, 05:06 pm
AUDIOSOURCE AMP FOUR, 400 WATT STEREO POWER AMPLIFIER, LOOKS & SOUNDS GREAT
AUDIOSOURCE AMP FOUR, 400 WATT STEREO POWER AMPLIFIER, LOOKS & SOUNDS GREAT
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249.50 USD
Ends:
Sep 04, 07:13 pm
2000W 110V 5Channel Bluetooth Home Stereo Power Amplifier Amp USB SD Remote HiFi
2000W 110V 5Channel Bluetooth Home Stereo Power Amplifier Amp USB SD Remote HiFi
Price:
44.79 USD
Ends:
Sep 03, 02:32 am
11 Bids
ONKYO M-5000 STEREO POWER AMPLIFIER Perfect Condition 105 WATTS Per CHANNEL
ONKYO M-5000 STEREO POWER AMPLIFIER Perfect Condition 105 WATTS Per CHANNEL
Price:
69.00 USD
Ends:
Aug 05, 10:48 pm