Savagexjoker
CarAudio.com Newbie
Okay so my amp stopped working a few days ago i checked everything from ground to fuses, so i figured my amp was going bad it was really old anyways. So I finally upgraded to a boss 4000D amp and i hooked it all up excited and i cant seem to get my sub to get nearly as loud as it was prior to the old amp going bad. Ive messed with all the settings on amp and HU and still not the same. Someone help. I have a 15in boss sub btw.