Subwoofer size: 6″ Frequency response: 50-150 Hz(-10dB) Variable low-pass filter: 60-150 Hz@18dB/octave Variable phasr control: / Amplifier power output:80 watts@THD<0.5% Inputs Stereo line lever and Hi-level Dimensions:400 x 540 x 121mm(HxWxD)