CT Sounds CT-80.4AB Full Range Class AB 4 Channel Car Audio Amplifier 480 Watts

Black Diamond DIA-K4 Car Audio Amplifier 4 Channel Full Range Class D 2000W

CT Sounds CT-150.4D 1000 Watt RMS Full-Range Class D 4 Channel Car Amplifier

Black Diamond DIA-K4 Car Audio Amplifier 4 Channel Full Range Class D 2000W

Black Diamond 4-Channel Amplifier Class D 3600W Full Range - DIA-P1800X4D

Audiopipe APMCRO-4060 Micro Full Range 4 Channel Class-D Car Amplifier 4/8 Ohms

Alpine S-A32F, S Series Class D 4 Channel Car Amplifier, 320 Watts RMS (OB)

Cerwin-Vega CVP1600.4D 1600 Watt 4 Channel Class D Car Audio Amplifier Amp