SUPPLY subwoofer

You get giant bass when you get Alpine's dual 12" sub package — the MRD-M605 mono subwoofer amplifier delivers 600 watts to two SWS-1223D 12" subwoofers for high-impact bass that you can hear and feel. These dual voice coil subs measure only 5" deep so you can fit realistic bass in tighter spots without giving up an ounce of sound quality. Just add a sub enclosure and some amp wiring to be set up for great sound. Details: - package includes MRD-M605 mono subwoofer amplifier and two SWS-1223D 12" subwoofers MRD-M605 1-channel amplifier - 400 watts RMS x 1 at 4 ohms (600 watts RMS X 1 at 2 ohms) - CEA-2006 compliant - variable low-pass filter (30-200 Hz, 12 or 24 dB per octave) - bass boost (0-16 dB at 45 Hz) - subsonic filter (15/30 Hz, 24 dB/octave) - Class-D amplifier design with MOSFET output and power supply - preamp-level inputs and outputs - 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier - 11-7/16"W x 2-7/16"H x 9"D - warranty: 1 year SWS-1223D 12" subwoofer with dual 2-ohm voice coils - pulp/fiber cone reinforced with Kevlar - Santoprene™ rubber surround - power range: 50-300 watts RMS (150 watts per voice coil) - frequency response: 27-700 Hz - sensitivity: 86 dB - mounting depth: 5" - sealed box volume: 0.85-1.5 cu. ft. - ported box volume: 1.25-2.0 cu. ft. - warranty: 1 year