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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.
400W 12V 2 Channel Powerful Stereo Audio Power Amplifier HiFi Bass Amp Car Home
400W 12V 2 Channel Powerful Stereo Audio Power Amplifier HiFi Bass Amp Car Home
Price:
17.48 USD
Ends:
May 22, 08:06 am
Compact Bluetooth Stereo Amplifier - Desktop Audio Power Amp Receiver with FM...
Compact Bluetooth Stereo Amplifier - Desktop Audio Power Amp Receiver with FM...
Price:
53.74 USD
Ends:
Jun 13, 06:48 pm
Mini HiFi Digital Stereo Audio 2 Channels Amplifier Power Amp DC 12V FM Car Home
Mini HiFi Digital Stereo Audio 2 Channels Amplifier Power Amp DC 12V FM Car Home
Price:
15.89 USD
Ends:
Jun 04, 02:45 pm
NEW SKAR AUDIO RP-2000.1D 2800 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
NEW SKAR AUDIO RP-2000.1D 2800 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
Price:
212.49 USD
Ends:
Jun 06, 09:34 pm
Audio Research D-125 Amplifier, Rare, Excellent
Audio Research D-125 Amplifier, Rare, Excellent
Price:
1,800.00 USD
Ends:
Jun 19, 04:09 pm
4000W HiFi bluetooth Power Amplifier 5 Channel Stereo Home Audio Amp Receiver
4000W HiFi bluetooth Power Amplifier 5 Channel Stereo Home Audio Amp Receiver
Price:
84.79 USD
Ends:
May 29, 02:06 am
Pyle PTA66BT Bluetooth Home Audio 600 Watt 6 Channel Amplifier Stereo Receiver
Pyle PTA66BT Bluetooth Home Audio 600 Watt 6 Channel Amplifier Stereo Receiver
Price:
112.99 USD
Ends:
Jun 12, 07:36 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:
16.81 USD
Ends:
Jun 17, 09:51 am
NEW SKAR AUDIO RP-800.1D 1200 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
NEW SKAR AUDIO RP-800.1D 1200 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
Price:
127.49 USD
Ends:
Jun 06, 01:59 pm
Fosi Audio ZK-1002 Bluetooth 5.0 TPA3116D2 Digital Power Amplifier Board 100W
Fosi Audio ZK-1002 Bluetooth 5.0 TPA3116D2 Digital Power Amplifier Board 100W
Price:
22.69 USD
Ends:
Jun 08, 08:35 am
Audio Amplifier
Audio Amplifier
Price:
1,450.00 USD
Ends:
Jun 19, 05:29 am
Mini Bluetooth Audio Amplifier Receiver Stereo Power Amp Remote USB Music Player
Mini Bluetooth Audio Amplifier Receiver Stereo Power Amp Remote USB Music Player
Price:
46.99 USD
Ends:
Jun 18, 10:02 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:
61.74 USD
Ends:
May 23, 03:21 am
Sunbuck 5000W Bluetooth Power Amplifier Stereo Amplifier Audio 2 CH AMP Car&Home
Sunbuck 5000W Bluetooth Power Amplifier Stereo Amplifier Audio 2 CH AMP Car&Home
Price:
58.99 USD
Ends:
May 29, 06:01 am
2000W-6800W bluetooth Power Amplifier Car & Home 2/4/5 Channel Stereo Audio Amp
2000W-6800W bluetooth Power Amplifier Car & Home 2/4/5 Channel Stereo Audio Amp
Price:
39.53 USD
Ends:
May 26, 09:06 am
100W Bluetooth 5.0 Stereo Audio Receiver Amplifier 2.1 Channel  for Home Outdoor
100W Bluetooth 5.0 Stereo Audio Receiver Amplifier 2.1 Channel for Home Outdoor
Price:
66.48 USD
Ends:
Jun 18, 08:28 am
NEW SKAR AUDIO RP-1200.1D 1600 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
NEW SKAR AUDIO RP-1200.1D 1600 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
Price:
144.49 USD
Ends:
May 25, 08:39 pm
7 Bids
SpeakerCraft BB50 2-Channel Audio Amplifier Stereo Amp
SpeakerCraft BB50 2-Channel Audio Amplifier Stereo Amp
Price:
36.00 USD
Ends:
May 21, 05:04 am
600W bluetooth HIFI Home Car Power Amplifier with Remote 2 Channel Audio Stereo
600W bluetooth HIFI Home Car Power Amplifier with Remote 2 Channel Audio Stereo
Price:
38.45 USD
Ends:
May 25, 08:58 am
NEW SKAR AUDIO RP-1500.1D 1900 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
NEW SKAR AUDIO RP-1500.1D 1900 WATT MAX POWER CLASS D MONOBLOCK SUB AMPLIFIER
Price:
169.99 USD
Ends:
May 20, 09:31 pm
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