Marine-Audio - Fusion Active Subwoofer with in-built 4 Channel Amplifier - MS-AB206
M1000/1v2 | JL Audio | Marine Tech Miami
BOSS Audio Systems MR1200PA Marine Amplifier with PA System - 1200 Watts, 4 Channel, Full Range, Bridgeable, Mosfet Power Supply, Remote Subwoofer Control, Public Adress System with Microphone : Electronics