The PC2150 is brand new, so I doubt that is the problem. I told Scott to get the redtop up front replaced and he is working on that.
I have never set his amp gains but maybe next time we work on it I will check that all out. I helped design and build the box but paid no attention to the amps and everything else, maybe it is just a bad setting and the amps need adjustement.
If you havent tried yet Scott, start with everything turned down on the amps, like all the way. Slowly work up from there and watch voltage on each burp. Pay no attention to your score, that isnt the issue on hand, but rather doing the score and being able to do it again and again.
Let me/us know if it helps.