I have a Yamaha RX-A820. The mains can be set to 4ohm, but not the center. I called Yamaha and they do not recommend using a 4ohm speaker for the center. The specs on the Horizon say it's 4 ohm. I don't play with the volume all that loud, even when watching a movie. Does anyone else run the Horizon center with an 8 ohm consumer grade receiver?

Thanks,

Allan