TOTAL POWER OUTPUT： R/L: 12W+12W SIGNAL TO NOISE RATIO: ≥85dB(A) FREQUENCY RESPONSE:70Hz-20KHz INPUT SENSITIVITY:Line in A: 700mV±50mV Line in B: 500mV±50mV Bluetooth: 400mV±50mFFS INPUT TYPE: RCA (x2) BASS DRIVER: 4 inch (106mm) TREBLE DRIVER:Φ13 mm