I have multiple RCA's until I get them all matching. Right now I'm using some Knu Krystal RCA's for the sub amp (longest run), Audiopipe blue wire RCA's (don't know model or specs or anything) for my mids, and some el-cheapo pink wire RCA's (raptor brand I think) for my tweeters, and well, nothing sounds bad to me..yea they are more money so i would think they would be the best.
I can get a set of 20ft 2 channel and set of 20ft 4 channel for 58 shipped. Is there better rca's out there for the money or is the rca talk bullshit when it comes to improving anything with the sound or preventing noise. I hear about the engine whine. Can i just use cheap rca's and ground them??