Total power output:RMS 16W 5 (treble) + 20W 5 (mid-range) SW: RMS 220W Signal to noise ratio:95dBA Input sensitivity: AUX: Satellite: 600mV±50mV Subwoofer: 750mV±50mV Optical: Satellite: 300±50mFFS Subwoofer: 550±50mFFS Input type:Optical x 3 /AUX Bass unit:8 inch (210mm) Package size:618 x 500 x 493 (mm) Mid-range unit:FL/FR/C/SL/SR: 3 inch (82mm) Treble unit:Φ19mm silk dome