My Peavey combo is acting up. This comes out of nowhere, because up until this point it's been a real workhorse, and worked despite the abuse that has been thrown its way. (I haven't abused in a while, so it has no reason to be cranky.) It's an older TNT130, before they started calling them them the 115. The problem is, while I am playing, the DDT (clipping protection circuit dealie) goes on, stays on, and the sound cuts out. I haven't changed anything in my setup, so the signal going into the amp is the same it's always been. The amp will stay silent with the DDT on for random amounts of time. I can turn the amp off and on, and the light will still be on. The sound comes back at random after a soft pop and some hiss that slowly fades and then it sounds like it did before. (Still crappy, but there's sound.) Sometimes the problem lasts a few seconds, sometimes it will be minutes. I have had my amp for almost four years and this has never happened until now. What the hell is going on?