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Amazon.com: Alpine BBX-T600 600W Max BBX Series 2-ohm Stable 2 Channel Class-A/B Amplifier : Everything Else
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Amazon.com: NVX MVPA.4 600W Total RMS 4-Channel Bridgeable Marine-V Series Micro Class D Compact Marine/Powersports/Motorcycle Amplifier | IPX67 Waterproof Rating : Electronics
Excalibur X600.4 4-Channel Power Amplifier Car Radio Stereo Amplifier 4 x 600 Watt - MOSFET 2400 Watt Max : Amazon.de: Electronics & Photo
Amazon.com: Alpine S-A60M 600 Watt RMS Mono Car Audio Amplifier Subwoofer Amp Class-D Bundle with Rockville Rock Everywhere Portable Bluetooth Speaker/Waterproof/Wireless Link : Everything Else