KICKER 48KXMA9005 900 Watt 5-Channel Marine Boat Amplifier Class D Amp KXMA900.5

The KXMA900.5 is a full-system solution in one chassis. Four full-range channels deliver 125W each at 2 ohms or 100W each at 4 ohms, with 250W per channel available bridged, while the dedicated mono subwoofer channel puts out 400W at 1 ohm. Total dynamic power is 1300W.

That layout means four speakers and a subwoofer run off one amplifier with one power run, one ground and one fuse. On a boat where locker space is measured in inches, that matters as much as the wattage.

A wired bass controller comes in the box, so subwoofer level adjusts from your seat instead of from the amplifier. The sub channel uses a 24dB/octave low pass variable from 40 to 160Hz with a subsonic filter variable from 10 to 80Hz and KickEQ boost up to 6dB. Amp 1 covers full range with a 24dB crossover variable from 10Hz to 5kHz, and amp 2 adds band pass capability.

Gain, crossover and bass boost controls sit behind a gasket-sealed panel. Real Marine construction includes anti-corrosive terminals, conformal-coated boards, ABYC/NMMA-compliant connections and stainless-steel mounting hardware. The black anodized chassis measures 2-1/8" x 8-5/16" x 12-3/4".