Av network receiver loudspeaker configuration 52 output power per channel 130 watt output impedance 6 ohm analogue inputs 2 optical inputs 1 number of coaxial inputs 1 number of hdmi inputs 6 number of hdmi outputs 1 composite video inputs 2 preamp outputs subwoofer x2 51 pre out front connections usb microphone audio input stereo rca other connections ethernet phono input dolby formats dolby truehd dolby prologic ii dolby digital plus dts forma