Car Audio Central - Ultimate Car Audio Forum and Community

That's the problem. I tried setting it down. It works for a while, then I have to set it lower and lower. It seems like it's getting worse over time. Right now I have it at the "normal" setting (about 2v) and the sub volume is way too low. I just get very mild bass with no thump. I usually...

I have a Pioneer GM-D7500M amp and Infinity reference 12" SVC subwoofer. I have a new battery and alternator, and 12 gauge speaker wires going to the sub. I also have 8 gauge power wires going to the battery. I got RCA cables going from a 4 volt sub out on the deck. My system used to work great...