Need Opinions on RF RCA's?

It won't have any effect on signal strength. To the extent the super shielding or whatever helps keep out some noise they might have a tiny tiny effect on SQ. However, I highly doubt they'll make any difference at all. Try some cheap rcas from http://www.knukonceptz.com/ They'll be more than adequate. If you ever decide to spend a crazy amount of money on your amplifiers and main speakers then you may want to consider more expensive rcas, until then go cheap and put your saved money into the actual equipment. New Project: 2003 Pathfinder