4 Channel

Fusion MS-AM504 4 Channel Marine Amplifier

JL Audio MHD600/4-24v 600 watt24 volt4 channel marine full range switching amplifier4 x150 watts

Cicada Audio FLX1400.4 - 4 x 350 @ 2 Ohm Amplifier

Cicada Audio BDA2000.4D - 4 Channel x 500 Watts @ 2 Ohm Amplifier

Memphis Audio MX800.4 Powersports 800 Watts 4-Channel Amplifier

Kenwood KAC-M5024BT 4 Channel Bluetooth, Compact Amplifier, Waterproof

Kicker 48KXMA5004 KXMA500.4 4x125w 4-Ch Full-Range Class-D Marine Amplifier

Fusion SG-DA41400 Signature Series 4 Channel Marine Amplifier

Alpine KTA-450 4-Channel Power Pack Amplifier with Dynamic Peak Power 45W RMS x 4, At 2 Or 4 Ohms

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Wet Sounds HTX4: Class D 600 watt 4-channel amplifier