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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 a radio receiver or an 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.
100W Mini Power Amplifier Audio Amp for Passive Subwoofer Speaker Black
100W Mini Power Amplifier Audio Amp for Passive Subwoofer Speaker Black
Price:
32.99 USD
Ends:
Jun 12, 05:20 am
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
Price:
89.89 USD
Ends:
Jun 10, 09:00 pm
200W Bluetooth Amplifier Board Dual Channel TPA3116 Audio Amp Board LC Filter
200W Bluetooth Amplifier Board Dual Channel TPA3116 Audio Amp Board LC Filter
Price:
23.50 USD
Ends:
May 25, 10:46 pm
USED SKAR AUDIO RP-800.1D 1200 WATT MAX POWER CLASS D MONO SUB AMPLIFIER
USED SKAR AUDIO RP-800.1D 1200 WATT MAX POWER CLASS D MONO SUB AMPLIFIER
Price:
99.99 USD
Ends:
May 20, 06:18 pm
DS18 GEN-X6000.1 Car Audio Amplifier 1 Channel Class D Monoblock 6000 Watts
DS18 GEN-X6000.1 Car Audio Amplifier 1 Channel Class D Monoblock 6000 Watts
Price:
199.95 USD
Ends:
Jun 06, 02:20 pm
NEW SKAR AUDIO RP-350.1D 380 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
NEW SKAR AUDIO RP-350.1D 380 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
Price:
93.49 USD
Ends:
Jun 09, 01:13 am
Moukey Bluetooth 5.0 Stereo Amplifie Desktop Audio Power Amp Receiver w FM Radio
Moukey Bluetooth 5.0 Stereo Amplifie Desktop Audio Power Amp Receiver w FM Radio
Price:
49.49 USD
Ends:
May 27, 06:15 pm
Audiobank Monoblock 3000 WATTS Amp Class AB Car Audio Stereo Amplifier P3001
Audiobank Monoblock 3000 WATTS Amp Class AB Car Audio Stereo Amplifier P3001
Price:
84.99 USD
Ends:
May 21, 06:48 am
Mini 100W Mono Channel Subwoofer/Full-range Digital Amplifier Desktop Audio Amp
Mini 100W Mono Channel Subwoofer/Full-range Digital Amplifier Desktop Audio Amp
Price:
54.99 USD
Ends:
Jun 02, 07:18 pm
Mini HiFi Earphone Headphone Amplifier Portable AMP 3.5mm with Audio USB Cable
Mini HiFi Earphone Headphone Amplifier Portable AMP 3.5mm with Audio USB Cable
Price:
25.00 USD
Ends:
May 24, 03:41 am
Kicker 46CXARC Car Audio Wired Bass Remote Knob PXA PX CXA CX DX Amp Amplifier
Kicker 46CXARC Car Audio Wired Bass Remote Knob PXA PX CXA CX DX Amp Amplifier
Price:
34.90 USD
Ends:
May 22, 06:44 pm
Monoprice 6 Zone Home Audio Multizone Controller and Amplifier Kit
Monoprice 6 Zone Home Audio Multizone Controller and Amplifier Kit
Price:
659.99 USD
Ends:
Jun 03, 06:35 pm
Fosi Audio BT20A Bluetooth Channel Amplifier Receiver
Fosi Audio BT20A Bluetooth Channel Amplifier Receiver
Price:
49.99 USD
Ends:
Jun 03, 07:56 pm
SKAR AUDIO SK-M9005D 900 WATT RMS 5-CHANNEL CLASS D ULTRA COMPACT CAR AMPLIFIER
SKAR AUDIO SK-M9005D 900 WATT RMS 5-CHANNEL CLASS D ULTRA COMPACT CAR AMPLIFIER
Price:
152.99 USD
Ends:
May 25, 06:07 pm
K380 800W Bluetooth Power Digital Amplifier HIFI FM Audio Home Car With Remote~
K380 800W Bluetooth Power Digital Amplifier HIFI FM Audio Home Car With Remote~
Price:
15.98 USD
Ends:
Jun 16, 05:18 am
600W Digital Amplifier bluetooth HIFI Stereo Audio SD FM Mic 110V 12V Car Home
600W Digital Amplifier bluetooth HIFI Stereo Audio SD FM Mic 110V 12V Car Home
Price:
45.96 USD
Ends:
May 22, 07:41 am
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Niles Audio GXR2 6 Zone Amplifier
Niles Audio GXR2 6 Zone Amplifier
Price:
25.00 USD
Ends:
May 21, 06:47 pm
X-Brand 3500W Car Audio Blue 4 Gauge Pro AMP / Amplifier Power Wiring Kit ANL
X-Brand 3500W Car Audio Blue 4 Gauge Pro AMP / Amplifier Power Wiring Kit ANL
Price:
29.99 USD
Ends:
May 28, 11:55 pm
Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi
Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi
Price:
44.97 USD
Ends:
Jun 18, 10:58 pm
Sunbuck 2000W HiFi bluetooth 5.0 Power Amplifier 2 CH Car Auto Home Stereo Audio
Sunbuck 2000W HiFi bluetooth 5.0 Power Amplifier 2 CH Car Auto Home Stereo Audio
Price:
45.99 USD
Ends:
Jun 10, 04:21 pm
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