Class D Power Supply, 725 Watts of Dynamic Power, Four-Channel Amplifier with Bridging Capability, Conformal-Coated Circuit Board Variable 12dB Crossover, KickEQ Variable 6dB Bass Boost, Real Marine ABYC/NMMA-Compliant Power Connections, 316L Stainless-Steel Hardware Included Specifications: POWER [watts/ch], 2 OHM STEREO: 150 x 4, POWER [watts/ch], 4 OHM BRIDGED MONO: 300 x 2, DYNAMIC POWER [watts]: 725, COMES WITH WIRED REMOTE: No DIMS [in] all models 2-5/16H x 7-1/8W x_L: 12-7/16, DIMS [cm] all models 5.9H x 18.0W x_L: 31.5, FREQUENCY RESPONSE [Hz]: 10-20k, +0/-1dB, INPUT SENSITIVITY: High Level 250mV-10V, Low Level 125mV-5V SIGNAL-TO-NOISE RATIO: >95dB, a-weighted, re: rated power, ACTIVE CROSSOVER: 12dB/octave, variable 50-200Hz, selectable high pass, low pass or all pass, KickEQ BOOST: Variable 0-6dB, centered @ 40Hz Big sound meets big value. Use this flexible four-channel KM-Series marine amplifier to power your system like only KICKER can! POWER THE PARTY: Using a Class-D power plant, this amp features a variable bass boost with KickEQ, giving you as much as 6dB of extra bump. Powering as many as eight speakers, this amplifier makes your entire boat sound like a floating concert! A powerful 12dB crossover is also included, letting you quickly tune your system to perfection.