The Kicker Marine KMA150.2 is a genuine weather-resistant 2-channel Class A/B amplifier designed for clean, reliable power on the water. This compact amp (OEM ref 48KMA1502) is ideal for powering a pair of marine speakers, or for bridging into a single 43 load where you need more output. RMS power: 40W x 2 @ 43, 75W x 2 @ 23, 150W x 1 bridged @ 43 Minimum impedance: 23 stereo / 43 bridged Frequency response: 10Hz320kHz (+0/1dB) Inputs: high-level (250mV10V) and low-level (125mV5V) Tuning: 12dB/oct variable crossover (50200Hz; HP/LP/All-pass) + KickEQa0bass boost up to +12dB @ 40Hz Marine-ready build: conformal-coated circuit board, ABYC/NMMA-compliant power connections, 316L stainless-steel hardware Dimensions: 2-5/16a0in H x 7-1/8a0in W x 8-1/16a0in L Before ordering: confirm ratings, specification and fitment before ordering, and match speaker/subwoofer impedance and RMS ratings to avoid equipment damage. Fuse and wiring are not included; use marine-grade cabling and a correctly sized fuse (40A recommended).