Size & WeightDIMENSIONS (W X H X D): 229 x 136 x 253mmWEIGHT: 2.4kgGeneral FeaturesOUTPUT POWER: 55W x4PRE OUT: 3 Pre (Front / Rear / Sub x 1)REAR VIEW CAMERA IN: YesUSB: Yes (Rear x1)FIRMWARE UPGRADABILITY: YesDSO (DYNAMIC STAGE ORGANIZER): YesEQUALIZER: 10-band Graphic EqualizerEXTRA BASS: Yes..