Klipsch R-100SW 10 Subwoofer, Incredibly Deep Bass and an All-digital Amplifier,14 5 x 12 5 x 16 4 - 10 front-firing spun-copper IMG woofer - All-digital amplifier with 300 watts peak power - Volume low pass crossover and phase control - Line level LFE RCA inputs for maximum receiver compatibility - Dimensions 14 5 x 12 5 x 16 4 - Frequency response: 32Hz - 120Hz - 3dB - Amplifier power (Cont Peak): 150W 300W - Amplifier features: Volume, low-pass, 0 180 phase, Auto power on