I am looking at getting a new set up with Klipsch RF62II fronts a RC-62II Center but I am trying to decide on the surrounds between the two above. If I am going to cross over at 80 hz will it really make much of a difference? I noticed the -3db point even on the 42 is 63hz. We have a fairly narrow room so I am wondering if the 42's would be better in this scenario. They would probably be a little better in WAF but I do not want to compromise on sound quality if there is a huge difference. I had been looking at a whole HSU setup instead but I like the efficiency of the Klipsch speakers.