RCA connectors can make a big difference. The KLE's are great (somebody mentioned them above), and I use them in my system (TT to pre, and pre-amp to power amp). Best sounding ones I've ever heard were Bocchino's, but they are very very expensive. I have some REAN's I'm going to try as several people seem to like them and they are inexpensive. I'll let you know what I think when I get a chance to try them.