Five or six years ago I bought a used Yamaha HTR-5760 off craigslist. I have never been happy with the audio quality out of the receiver. The sound is very sharp on highs and I cannot understand the voices coming out of the center channel. I have very little bass out of any of the channels. I have been using a KSC-C1 center channel and some cheap no-name front towers. I recently purchased a pair of KLF 20's and a KLF C7 with no real improvement in sound. I thought the receiver probably was not programmed correctly. I purchased a remote and borrowed a mic... ran it through the setup. When it completed, it had set the crossovers for the front channels to 130Hz and set the speakers to small. Even with me tweaking these settings, I can't seem to get good sound out of the speakers. At this point, I'm just ready to get a new receiver. My current setup is just a 5.1 and probably won't increase from that. Like I said I have KLF 20's front channels, KLF C7 center, and KSB 1.1 rears. I enjoy listening to both 2 channel music and this is also my home theater. I've been reading a lot of reviews from different brands and I get concerned with failures. I want a quality piece of equipment but my budget is going to be on the lower side, probably around $500. Any help/ideas/suggestions is appreciated! Thanks!