I have 2DVC Pioneer premiers, with an audiobahn amp powering them. Recently one of my subs started to sound like crap. It would hit all frequencies when the other would hit the correct ones. I never had this problem before. I have them wired at 2 ohms. THis is how its wired, Black to red, and Red to terminal cup, and black to T.C. Subs are Bridged, I dont get it!!!! The sub doesnt seem to be blown. please help.