Total power output: R/L: RMS 9W x 2 SW: RMS 35W THD + N (testing level): 10% Signal to noise ratio: ≥85dBA Frequency Range: 55Hz-18KHz (±6dB) Input sensitivity: R/L: 450mV ± 50mV SW: 150mV ± 50mV Audio input: Optical, Auxiliary, RCA