Originally Posted by wolf1419

Peter, thank you sooo much. It makes sense and I was wondering why both amps did it to varying degrees, a little different each time. These are also 350 watt amps, tube preamps, so maybe just a little more brutal with the startup than some smaller amps. That's a better answer than I got from Marshall. I'm just wondering why no one else has mentioned it, since it seems a little odd to me. Thanks again, and if you hear anything else about this please don't hesitate to add to it.