200w Sub Amp, new in box. Never got around to using it. $375 will arrange pick up or ship with insurance at buyers expense. RBH SA-200 Subwoofer Amplifier technical specs Amplifier Type: Discrete Class A/B Power Output: 200 Watts RMS @ 4 Ohms Distortion (THD): 82dB (without filter) Line Level Input Impedance: 45 Kohms Speaker Level Input Impedance: 200 Ohms Line Level Input Sensitivity: 80 mV Speaker Level Input Sensitivity: 2.8V Crossover Slope: 12dB/Octave Crossover Freq. Range: 40-180Hz±3dB (Variable) Auto Turn-on Sensitivity: 2 mV @ 50 Hz Frequency Response (filter off): 20Hz-40kHz-3dB Frequency Response (boost on): 15Hz-40kHz-3dB Boost: 4dB @ 25Hz Damping Factor: > 200 Dimensions (w rack mounts): 19" W x 4" H x 14" D Dimensions (w/o rack mounts): 17 3/4" W x 4" H x 14" D Rack Mount Holes (horizontal): 18 3/4" (ctr. 2 ctr.) Rack Mount Holes (vertical): 3" (ctr. 2 ctr.) Weight: 17 Lbs.