Wow I love all the fancy words and scientific jargin beeing thrown around in this thread, you guys really love to prove who has the bigger brain, or is it ego? Look the only real audible difference I have noticed in any system I have ever hooked up is that with a decent quality RCA cable you wont have any induced noise and thats it. As far as speaker line goes as long as you are running a decent gauge for the amount of power and length then you should be fine. In my own car I just run standard DB link RCA's, DB link link speaker cable of a decent gauge and DB link power wire, this stuff is by no means super highend but it gets the job done and there is no induced noise. But as far as the dynamics of the sound go you can listen to the car or RTA it and guranteed you really wont notice any difference bu running super expensive highend cable and interconnects in the car. I think that alot of people that by these expensive cable think they are hearing better quality sound because of all the money they spent, kinda like the kids who slap an intake on a civic and think they have gained all kinds of power when really its all psycholgical because of how loud the intake is. So really you guys can keep bantering on and turn this into the biggest thread on CCA but its such a waste of time, how about instead of arguing about a topic as useless as this go out and enjoy your systems that you have spent so much money wiring up, I havent spent much wiring mine up and it sounds superb and I enjoy the hell out of it!