Features:10" woofer amplifier power: 50 wattsfrequency response ± 3db tbdinput: high/line leveloutput: high levelphase switch: 0° /180°level control: variableauto turn on/off low pass slope: 18dbsubsonic filter: 18db@25hzdimensions (hxwxd): 19-3/4" x 11-7/8" x 16-5/8"weight: 0 (lbs)