Home cinema receiver loudspeaker configuration 51 output power per channel 135 watt total output power 675 watt output impedance 6 ohm speaker terminals compression clamp analogue inputs 2 optical inputs 1 number of coaxial inputs 2 number of hdmi inputs 4 number of hdmi outputs 1 component video inputs 3 video output component 1 preamp output subwoofer x1 front connections usb portable input aux in microphone headphone jack other connections ae