I have the Onkyo TX-SR607 paired with the monitor 60's as front and the CS1Series two as the center. I get fair
sound and typically have to be on the THX setting on the receiver. The feed is coming through the PC AUX port, or
AUX cable from the TV. I have tried using the optical cable as well as HDMI cable and the best output I have received is from the simple AUX audio cable. The main complaint is that the receiver has to be cranked to 50% or more to get
any decent sound output. It is very difficult to hear dialogue from movies and music doesn't sound much better either.
I am pretty sure it has to come down to my wiring, but am not really sure where to start. All speakers are wired with plain speaker cable. Any help is appreciated, thanks!