Kicker 47KEY200.4 Compact 4-channel car amplifier with automatic tuning DSP — 50 watts RMS x 4 at Crutchfield
BOSS Audio Systems R1002 Riot Series Car Stereo Amplifier - 200 High Output, 2 Channel, Class A/B, 2/4 Ohm Stable, Low/High Level Inputs, Full Range, Use With Subwoofer
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Amazon.com: AUTUT Dual Channel Mini Amplifier, Hi-Fi Stereo Reciever for Cars Motorcycles Computer Speakers, DC 12V-15V 40W : Electronics
KICKER | Key 200.4 Smart Amplifier
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Autotek SMA1500.4 Street Machine 1500 Watt 4-Channel Car Audio Amplifier Amp - Walmart.com
Amazon.com: AUTUT Dual Channel Mini Amplifier, Hi-Fi Stereo Reciever for Cars Motorcycles Computer Speakers, DC 12V-15V 40W : Electronics
Handover Hi-Fi 12V Mini Car Amplifier Stereo CD / DVD / MP3 | Best Audio and Lighting Equipment
GM-D1004 - 4-Channel - Class D, 400w Max Power - Compact Bridgeable Amplifier | Pioneer Electronics USA
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Amazon.com: Kinter MA170+ 2-Channel Auto Home Cycle Arcade DIY 2 x 18 W Mini Amplifier Bass Treble RCA Input Audio Mini Amplifier with 12V 3A Power Supply Black : Electronics
Amazon.com: Kinter MA170+ 2-Channel Auto Home Cycle Arcade DIY 2 x 18 W Mini Amplifier Bass Treble RCA Input Audio Mini Amplifier with 12V 3A Power Supply Black : Electronics