When I said amp is new I was saying I have a different amp than I had when problem started. New rca's new amp and new subs. Only thing that is the same is headunit and wiring. I guess I will change radio next.
My subwoofers pop when I reach a certain volume. No voltage drop not clipping. Also if I push one sub the other sub moves divided enclosure no leaks. Only does it when subs are hooked to amp.