Total power output:RMS 18W x 2 + 36W x 1 THD + N (testing level):10% Signal to noise ratio:?85dBA Frequency response:Satellites: 140Hz - 20kHz | Subwoofer: 20Hz - 120Hz Distortion:?0.5% Input sensitivity:Satellites: 450mV ± 50mV (line-in) / 250mV ± 50mV (AUX input) | Subwoofer: 180mV ± 50mV Input impedance:10Ω Audio Input Type:Stereo RCA Adjustment:Bass adjustment, Power switch Subwoofer / bass unit:6½ inch, magnetically shielded, 5Ω Midrange / high unit:2 inch, magnetically shielded, 5Ω Tweeter unit:?19mm silk domed, Magnetically shielded, 4Ω Remote control:Wired: Volume control, headphone jack Dimensions:Subwoofer: 246mm x 246mm x 286mm | Satellites: 68mm x 190mm x 100mm (WxHxD) Weight:?8.60Kg (Net) / ?9.70Kg (Gross)