Total power output: RMS 9W x 2 + 16W x 1 THD + N: 10% SNR: 85dBA Distortion: 0.5% Input sensitivity: Satellites: 450mV ± 50mV (Line in) Subwoofer: 60mV ± 20mV Input impedance: 10KΩ Subwoofer / bass unit: 5.5 inch (139.7mm) Magnetically shielded, 4Ω Midrange / high unit: 50mm x 90mm Magnetically shielded, 4Ω Dimensions: Satellite: 74mm x 282mm x 89mm Subwoofer: 155mm x 236mm x 330mm (WxHxD) Weight: 5.3Kg (gross)