Share
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.
Sponsored Links
Banner 1
PYRAMID PB2518 3000 Watt 2-Channel Car Audio Amplifier Power Amp Stereo MOSFET
PYRAMID PB2518 3000 Watt 2-Channel Car Audio Amplifier Power Amp Stereo MOSFET
Price:
68.79 USD
Ends:
Dec 12, 08:03 pm
Hifonics ZG-1200.2 ZEUS Gamma 1200w 2-Channel Car Audio Amplifier Class A/B Amp
Hifonics ZG-1200.2 ZEUS Gamma 1200w 2-Channel Car Audio Amplifier Class A/B Amp
Price:
114.95 USD
Ends:
Dec 13, 03:08 pm
ORION CBT3500.4 4-CHANNEL CLASS AB CAR AUDIO AMP AMPLIFIER 3500W MAX
ORION CBT3500.4 4-CHANNEL CLASS AB CAR AUDIO AMP AMPLIFIER 3500W MAX
Price:
109.99 USD
Ends:
Nov 27, 07:53 pm
Stereo home Audio integrated Amplifier Bluetooth 5.0 adapter Receiver 2 Channel
Stereo home Audio integrated Amplifier Bluetooth 5.0 adapter Receiver 2 Channel
Price:
60.69 USD
Ends:
Dec 25, 09:24 am
6 Bids
Pyle PTA66BT 6 Ch. Bluetooth Audio Amplifier 600W Receiver System with FM Radio
Pyle PTA66BT 6 Ch. Bluetooth Audio Amplifier 600W Receiver System with FM Radio
Price:
25.00 USD
Ends:
Nov 27, 07:19 pm
Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier HiFi Class D NEW
Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier HiFi Class D NEW
Price:
65.99 USD
Ends:
Dec 23, 03:21 am
3 Bids
Pyle PTA44BT 4-Channel 500W Bluetooth Home Audio Amplifier - Black
Pyle PTA44BT 4-Channel 500W Bluetooth Home Audio Amplifier - Black
Price:
36.00 USD
Ends:
Nov 29, 02:02 am
110V HiFi Bluetooth 5.0 Power Amplifier Home Stereo Audio FM SD AMP Profession
110V HiFi Bluetooth 5.0 Power Amplifier Home Stereo Audio FM SD AMP Profession
Price:
43.99 USD
Ends:
Dec 21, 02:39 am
Mini 2CH HiFi Audio Stereo AMP Amplifier Power For Car Home FM MP3 Player 40W US
Mini 2CH HiFi Audio Stereo AMP Amplifier Power For Car Home FM MP3 Player 40W US
Price:
14.66 USD
Ends:
Dec 08, 09:28 pm
1X(HA400 4 Channel Ultra-compact Headphone Audio Stereo Amp Microamp Amplifier
1X(HA400 4 Channel Ultra-compact Headphone Audio Stereo Amp Microamp Amplifier
Price:
28.93 USD
Ends:
Dec 05, 12:46 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:
87.99 USD
Ends:
Dec 09, 01:13 am
BOSS Audio Systems R1004 4 Channel Car Amplifier ? Riot Series, 400 Watts, Full
BOSS Audio Systems R1004 4 Channel Car Amplifier ? Riot Series, 400 Watts, Full
Price:
46.99 USD
Ends:
Dec 25, 12:22 am
SUNBUCK 5000W EQ bluetooth HiFi Power Amplifier 2 Channel Stereo Home Audio ✲
SUNBUCK 5000W EQ bluetooth HiFi Power Amplifier 2 Channel Stereo Home Audio ✲
Price:
51.59 USD
Ends:
Dec 15, 02:18 am
XY-AP50L Mini Bluetooth 5.0 50W+50W Wireless Audio Power Digital Amplifier
XY-AP50L Mini Bluetooth 5.0 50W+50W Wireless Audio Power Digital Amplifier
Price:
13.00 USD
Ends:
Dec 15, 01:45 pm
Douk Audio P2 Bluetooth Vacuum Tube Preamp Headphone Amplifier USB Music Player
Douk Audio P2 Bluetooth Vacuum Tube Preamp Headphone Amplifier USB Music Player
Price:
69.99 USD
Ends:
Dec 05, 03:48 am
Orion CBT2000.4 Class AB 4 Channel Car Audio Amp Amplifier 2000W Max
Orion CBT2000.4 Class AB 4 Channel Car Audio Amp Amplifier 2000W Max
Price:
89.99 USD
Ends:
Dec 13, 05:24 pm
Audiobank Monoblock 2000 WATTS Amp Class AB Car Audio Stereo Amplifier P2001
Audiobank Monoblock 2000 WATTS Amp Class AB Car Audio Stereo Amplifier P2001
Price:
74.99 USD
Ends:
Dec 21, 06:50 am
Mini blue tooth Audio Amplifier Stereo Receiver Power Amp USB/SD/FM Music Player
Mini blue tooth Audio Amplifier Stereo Receiver Power Amp USB/SD/FM Music Player
Price:
41.99 USD
Ends:
Dec 12, 10:28 am
Sunbuck 5000W Power Amplifier Car Home Stereo Audio HiFi bluetooth 5.0 2 Channe
Sunbuck 5000W Power Amplifier Car Home Stereo Audio HiFi bluetooth 5.0 2 Channe
Price:
43.42 USD
Ends:
Nov 28, 09:52 am
Nobsound 100W Mini Subwoofer Power Amplifier HiFi Digital Mono Audio Amp
Nobsound 100W Mini Subwoofer Power Amplifier HiFi Digital Mono Audio Amp
Price:
32.99 USD
Ends:
Nov 29, 02:22 am
Banner 2