Specifikacija(engl):Product type Flat active subwoofer enclosure (20cm/8”) + 2-channel amplifierSubwoofer power 150W max / 75W RMSSubwoofer frequency response 45Hz – 150Hz2-channel amplifier power 2x110W Max / 2x55W RMS2-channel amplifier frequency response 55Hz – 55KHzImpedance 4 Ohms (Warning: not stable under 2 Ohms so not to be installed in parallel with a second kit]Cable power Directly from battery thanks to the power cable 5m x 3.30mm2 (included)Signal cable ISO Plug & Play cable: 3m (included)SNR > 80dBATHD < 0.08 %Dimensions ( H x W x D) 2.8” x 13.5” x 9.8” – (71.5 x 344 x 250mm)