I'm not sure why, but the subwoofer will stop hitting the correct beats when the volume gets turned up to like 45+ DB. I have it set to medium loudness, level 0 for the subwoofer level on the headunit itself, and the gain on the amp at half. Using a SAE-1200 Sundown amplifier with a 2005 RE XXX15 Sub. All hooked up correctly, just not sure what is going on!!?>

 

I read something somewhere saying that it is the auto-detect feature that may be causing the problem, but no idea how to turn this off or get it right so that I can play the subwoofer louder.. because I know it is nowhere close to its loudest..