Parameters: Input: Optical, Coaxial, Analog, Computer USB Output: 2-channel (stereo) subwoofer out1 Sampling rate: 44.1-192kHz (coaxial Optical)44.1-96kHz (computer USB)Bit wide: 16-24Bit Frequency response: 20Hz-22kHz Impedance adaptation: 4-8 ohm Maximum output power: 50W / 4 Ohm 35W / 8 ohm Dynamic Range: 102dBSNR: 81dB Power consumption: 102W (maximum) Dimension：137X103X33mm(Do not include bulge) Net Weight：1.1KG Package list: 1x Audio Q5 Pro Amplifier 1x USB cable 1x User manual 1x Power adapter 1x Remote control