200W max, 100W RMS built-in amp; Down-firing, long-throw 8" subwoofer; Freq resp: 38Hz-180Hz variable ; Signal-to-noise ratio: >80dB ; Deep, robust bass in an 11" cabinet ; Adjustable crossover, auto on/off signal sensing ; Black laminate finish ; 7-year limited warranty; Dim: 12.94"H x 11.25"W x 11.25"D; Each;