Power Output : RMS 16WΧ2(Treble)+19 WΧ2(Mid-range and bass 75W) Signal to noise ratio : ?85dBA Frequency response : 48Hz~20kHz (±6dB) Input sensitivity : Line in: 700 ± 50mV AUX: 550 ± 50mV OPT, COA: 400mFFs ± 50mFFs Input type : Auxiliary/Line in/Coaxial /Optical/Bluetooth Bass driver : 2?” (70mm) Treble driver : 3/4” (19mm) silk dome tweeter Subwoofer driver : 8” (210mm) Speaker dimension : 1000X79X80 mm Packing box dimension : 1085 x 645 x 351mm