$289.00 500W RMS Class D Monoblock Subwoofer Amplifier General Features High-Damping Class D Circuit with discrete control circuitry (U.S. Patent #6,441,685) Differential-Balanced Input Topology: 1 pair of inputs On-board Crossover: Fully-variable (40-200 Hz), selectable-slope (12 or 24 dB per octave) LP Preamp Output: 2-channel (independent active filter, parallel with amp filter or pass through) Bass EQ: Single-band parametric with variable boost up to +15dB and Remote Bass Option Infrasonic Filter: Fully-variable 24dB/octave from 15-60 Hz Signal-Sensing Turn-On: Permits operation without remote lead Dual mono speaker output connections: Accept up to 8 AWG wire +12V and Ground connections: Accept up to 4 AWG wire S/N Ratio: >95dB below rated power (A-weighted, 20 Hz - 20 kHz noise bandwidth) THD at Rated Power: 500 @ 4 ohm / 50 Hz , >250 @ 2 ohm / 50 Hz Input Range: Switchable from 200mV-2V RMS to 800mV-8V RMS Dimensions (L x W x H): 13.40 in. x 9.25 in. x 2.36 in. (340 mm x 235 mm x 60 mm) More...