Folks - I have the standard set-up which I thought would be okay, but, after a month, it definitely is not. I am going to upgrade the standard speakers with Infinity Reference 6010cs in front and 5010cs in back, but want to add a powered sub-woofer too. I've searched the forum but cannot find anything on installation of a sub-woofer in the non HK system so am looking for advice, and specifically where to make the connections into the existing system - is there anything prewired (eg for the HK amp)? Does the headunit have RCA outputs?

Any advice would be most appreciated.