HCM-400.4D 400w 4-Channel Car Amplifier Class D Compact Amp + Wire Kit

This bundle pairs the Hifonics Colossus Mini HCM-400.4D four-channel amplifier with a Rockville RWK42 4 gauge wiring kit, sized for a compact speaker upgrade in a motorcycle, UTV, or a car where a full-size amplifier doesn't fit the available space. A mass-loaded extruded aluminum heat sink cools the amp without a fan, and it pushes 400 watts total, breaking down to 100 watts per channel at 2 ohms or 50 watts at 4 ohms, and bridges to two channels at 200 watts each for running a pair of components instead of four speakers. Nickel-plated RCA inputs resist corrosion, and a delayed turn-on function keeps the amp from adding pops or hisses when the source unit powers on. Speaker-level inputs let it run without RCA outputs from the source unit, which matters in factory head unit installs where preamp outputs aren't available. The RWK42 kit supplies two sets of copper RCA cable for the 4-channel setup, 17 feet of 4 gauge power cable, 16 gauge speaker wire, an 18 gauge remote wire, and two AGU fuse holders with 100 and 60 amp fuses, along with the terminals and split loom needed for a clean install. Together, the amp and kit cover a full 4-channel speaker upgrade without sourcing wire separately.