I have a classic series Ampeg SVT 350H and I am tired of getting it fixed. The solder points on the board keep seporating and the amp wont fire up until it has been on for a good 15 minutes or so. A guy at Ampeg told me that when the board heats up it is probably expanding the points to where thay are making contact and it fires up. I dont know if it's true or if I got some kind of lemon but I do know that im tired of it. What do you think about the SVT 450 H? I have read many reviews on it and it scored very high in most areas unlike the 350H that was demonized by almost all that reviewed it. My speaker cabinet is an Ampeg 1540 also classic style so I would like to stay with the same look but am very limited to the 450 H only. Your input would be greatly appreciated. Thanks