4-Channel 1500W HiFi Android Amplifier Car Audio Stereo Power Amp System Upgrade

Crunch SA-1100.4 1100 Watts Smash Four Channel Car Audio Amplifier.

Pyle PLMRMP1A Waterproof 400W 2-Channel Marine Power Audio Amplifier

4 - Channel 7800W Watt Car Truck Amplifier Stereo Audio Speaker System/3800W 2Ch

JBL GTQ 360 4 Channel Amplifier Car Audio

Compact 4-Channel Marine Amplifier 400 Watt - Same as CLARION XC2410

Boss Audio Systems MOSFET Power Amplifier SE750 2-Channel Car Amp

Pioneer GM-6200F 4- channel car amplifier 60 watts RMS x 4 12V