... 2.2CH wooden case subwoofer speaker system Beautiful sound,Paint panel /ABS With USB/SD/MMC With CE ceritificates Specification:Subwoofer output power:6W ... (RMS, fo=100Hz,THD=10% ), 3.5inch, no anti-magneticSatellite output power: 3W ... *2CH(fo=1,000Hz,THD=10%), 2.75inch, no anti-magneticDistortion:≤0.15%(fo=1KHz,Po=1W)Signal/Noise ...