I recently got an SVT3-Pro (a couple months ago) and, to put it simply, have not been satisfied with the overall volume of the head. Although I really enjoy the all-tube feel to it, it just doesn't seem to be pushing strong enough through my Classic Series 8x10 (I play with a pick in a hardcore band so that might be something do to with it). I've heard a lot of good things about the Orange Terror Bass being a very versatile head and I was wondering what everyone's opinions would be on this situation? Should I sell the SVT3-Pro and get a Terror Bass or continue my search? Thanks!