I have a Primare I32. It came with a 5' cord that looks like 16 AWG at most. It is a bit loose at the amp side and pulled almost taught when I have the amp where I want it. I bought a 6' 14 AWG copper cord to resolve these issues. I didn't hear a noticeable difference; but as regards the noise floor, it is inaudible with either cord.
The sound system is on a dedicated 15 A circuit wired with 12 AWG.
The sound system is on a dedicated 15 A circuit wired with 12 AWG.