I have always heard 50%. Meaning if you have 1 cable that is 10ft then the other cable can be anywhere from 5 to 15ft. That being said when I got my sub it came with a 35ft cable and my speaker cables are 10ft. It didnt sound right as if the sub was playing off in its own little world. BTW I thought the cable was 30 ft so I cut it in half. Sounded better but still not right. Then when I cut it to 10ft it all sounded right.
I know your question is regarding right and left. The last time I played with R&L speaker cables I will admit at 50% I could hear a difference. Kind of like a quick echo or reverb (not sure if thats the right term). Me personally - since then have always kept my cables the same length.
I know your question is regarding right and left. The last time I played with R&L speaker cables I will admit at 50% I could hear a difference. Kind of like a quick echo or reverb (not sure if thats the right term). Me personally - since then have always kept my cables the same length.