TOP 10 Marine Amplifiers To Buy br 1. Rockford Fosgate M600-5 Marine 5 Channel Amplifier br br br 2. PYLE PLMRA620 6 Channel 2000 Watt Waterproof Marine Bridgeable Mosfet Amplifier br br br 3. Rockford Fosgate M600-4D Marine Amplifier br br br 4. Rockford Fosgate M400-4D Marine Amplifier br br br 5. PYLE PLMRA420 4-Channel 1,000-Watt Waterproof Marine Bridgeable MOSFET Amplifier br br br 6. MB Quart OA800.4 800-Watt 4-Channel Onyx Series Car Audio Amplifier br br br 7. Kenwood KAC-M1804 Compact 4-channel Amplifier br br br 8. BOSS Audio MR800 800-watts Full Range Class AB 2 Channel 2-8 Ohm Stable Amplifier with Remote Subwoofer Level Control br br br 9. JBL MA6004 4-Channel Full-Range Marine Amplifier br br br 10.