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NEW DC 20V-36V High Power Amplifier Board TDA7498 100W+100W Module Class D | eBay
Vistreck 2.1 Channel Subwoofer Power Amplifier Module DIY Kit 50Wx2+100W Treble Bass Control DC 12-24V BT Audio Amplifier Board Stereo Speaker Digital Amp for Audio System - Walmart.com
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Audison SR Series SR 4.300 4 Channel 85Wx4 Amplifier & a 8 GA Wiring Kit with 2 Pairs of APX 570 Prima Series 5x7" Coaxial Speakers - Creative Audio
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Amazon.com: Bluetooth Amplifier Board 2.1 2X50W+100W 12V-24V Audio Power Amplifier Module Bass and Treble Control for Store Home Theater Speakers with Antenna : Electronics