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 : 13 mm