I would like to publicly appologize to all SVT users. Recently lost my mind (posibly due to strong ultraviolet hallucinogenic rays) and became some what friendly with an older Trace Elliot. While this amp is very clear and powerful with an authoritative, robust, muscular tone, it "don't got that funkin mojo" that gives me wood. In fact, I stopped using an SWR SM-400 15 years ago and went back to carrying the beast from New Jersey for this very same reason. Brought gear home from a gig, and for whatever reason, hooked up the normal rig to the Ampeg selector switch (clearly the bass gods were smiling down at me). My, oh my; at 51, lugging that much steel, wood, and glass could injure my currently strong back, but perhaps that will be my cross to bear. Aside from the growl, and the lovely inherent tone, the touch sensitivity of flat wounds is much different and better for me. Even though the SVT will distort at high volumes through a 1x15 (and the Trace does not) it just seems like the right amp to use. Makes sense though; if the thing wasn't magical, why would anyone lug around an 80 lb., 40 year old design, that occasionaly requires expensive replacement parts?