I have 2 12" AudioBahn subs. They were working fine just kept shutting off per my amp was over heating. Now they wont work. The amp works fine because I have back up subs connected and are working. I hooked up my meter to the + and - and do not get a reading but when I hook up the + and touch the metal frame on the back of the sub then I get a reading. It is the same with sound but it is very distorted. Do you know what is wrong.?

Car Audio & Video - AudioBahn - AW1206T Car Subwoofer