Wow, thanks for the info from everyone. Honestly, I wasn't looking to replace the Musical Fidelity equipment for an AVR. Anyway, I have read about people adding a second sub but didn't know what the reasoning would be behind making that choice. Definitely something I will look into. I had also toyed with the idea of replacing the LS50s with an pair of PSB Imagine T2s, but from what I'm hearing, and what I've read, it will really not be worth spending the extra money and having to "retire" my LS50s to the bedroom. Is this true? Would I be better off, looking into adding another T-2 sub, and forgetting about replacing the speakers? I have a very small listening space now but want equipment that can be at home in larger rooms. Thanks again so much! Greatly appreciate all the feedback.