Total power output:21W x 2 Signal to noise ratio:85dBA Input sensitivity:PC: 750mV ± 50mV | Aux: 550mV ± 50mV Distortion:0.05% Audio input:Dual RCA input (RCA - RCA and RCA to AUX) Adjustment:Volume, bass and treble adjustment, remote control Subwoofer / bass unit:4 inch (106mm) Magnetically shielded, 6Ω Tweeter unit:13mm silk domed tweeter, Magnetically shielded, 4Ω Weight:4.9Kg Net | 5.65Kg Gross Dimension:146mm x 234mm x 196mm (WxHxD)