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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.
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:
15.39 USD
Ends:
Jul 04, 02:45 pm
Pyle Compact Bluetooth Stereo Amplifier - Desktop Audio Power Amp Receiver w/ FM
Pyle Compact Bluetooth Stereo Amplifier - Desktop Audio Power Amp Receiver w/ FM
Price:
49.99 USD
Ends:
Jul 14, 05:21 pm
Stereo Receiver Amplifier Home Theater Audio Power Speakers 220W 2 Channel Amp
Stereo Receiver Amplifier Home Theater Audio Power Speakers 220W 2 Channel Amp
Price:
39.99 USD
Ends:
Jul 26, 05:31 am
Compact Bluetooth Stereo Amplifier - Desktop Audio Power Amp Receiver with FM...
Compact Bluetooth Stereo Amplifier - Desktop Audio Power Amp Receiver with FM...
Price:
49.99 USD
Ends:
Jul 13, 06:48 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:
Jul 06, 09:34 pm
2 Bids
[Used] - Dayton Audio HTA100BT 100W Hybrid Stereo Tube Amplifier with Bluetooth
[Used] - Dayton Audio HTA100BT 100W Hybrid Stereo Tube Amplifier with Bluetooth
Price:
7.61 USD
Ends:
Jul 05, 01:00 am
Mini HIFI Digital Amplifier 800W 2CH bluetooth Audio Power Amplifier Car &
Mini HIFI Digital Amplifier 800W 2CH bluetooth Audio Power Amplifier Car &
Price:
27.41 USD
Ends:
Jul 13, 02:05 am
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:
14.98 USD
Ends:
Jul 22, 08:06 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:
59.98 USD
Ends:
Jul 29, 06:01 am
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:
14.71 USD
Ends:
Jul 12, 09:47 pm
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:
99.99 USD
Ends:
Jul 14, 11:03 pm
400W 12V 2.1 Channel Car Stereo Audio Power Amplifier HiFi Bass Amp Home LP-838
400W 12V 2.1 Channel Car Stereo Audio Power Amplifier HiFi Bass Amp Home LP-838
Price:
19.98 USD
Ends:
Jul 15, 12:07 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:
Jul 06, 01:59 pm
2 Bids
[Used] - Dayton Audio APA150 150-Watts Power Amplifier
[Used] - Dayton Audio APA150 150-Watts Power Amplifier
Price:
1.00 USD
Ends:
Jul 05, 01:10 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:
Jul 20, 09:31 pm
12V 400 Watt Car Audio Stereo Amplifier 2.1Channel HiFi Speaker Power Amp System
12V 400 Watt Car Audio Stereo Amplifier 2.1Channel HiFi Speaker Power Amp System
Price:
19.98 USD
Ends:
Jul 09, 03:36 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:
Jul 25, 08:39 pm
Amplifier Home Audio Stereo Mini 2 Channel Outdoor 12 volt Bass Balanced Amp
Amplifier Home Audio Stereo Mini 2 Channel Outdoor 12 volt Bass Balanced Amp
Price:
26.99 USD
Ends:
Jul 06, 08:28 pm
5800W Watt 4 Channel Car Truck Amplifier Stereo Audio Speaker Amp System Device
5800W Watt 4 Channel Car Truck Amplifier Stereo Audio Speaker Amp System Device
Price:
54.95 USD
Ends:
Jul 24, 08:20 pm
2 Bids
Wireless  5.0 Stereo Audio Amplifier Receiver 2 Channel Class D
Wireless 5.0 Stereo Audio Amplifier Receiver 2 Channel Class D
Price:
2.02 USD
Ends:
Jul 02, 10:10 pm
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