The HCP 4M four channels marine amplifier features a compact design ready to face the open water environment, providing tons of clean power. The HCP M heat sink has been crafted from extruded aluminum, a material unmatched for lightness, robustness, and heat dissipation. To keep size to a minimum, the power transistors are placed between the PCB and the top side of the heat sink where heat is gathered. Built-up heat is then directed to the special dissipation “wings” along the side of the amplifier.