Clarion APX490M Marine 4-channel amplifier — 90 watts RMS x 4 at Crutchfield
Clarion | APA4320
Amazon.com: Clarion XR5420 Class D 4-Channel 400W Maximum Power Handling Car Audio Amplifier Sound System Subwoofer Speaker Amp with Gravity Magnet Phone Holder and 4 Gauge Kit Blue Bundle : Automotive