Got one, and an 810. Primarily only use it, and the Marshall, as a practice amp and for large outdoor gigs as it's too damn heavy to move out of the studio. Usually biamp, for a clean and deep bottom with the tube amp handling the high mid and up, but even on it's own this rig kicks butt bigtime. Op-amp inputs, one for each jack, feeding what is essentially the first 2 stages and tone stack of a Fender blackface, followed by more op-amps. It has dual class AB, power sections can be used for 2 different type cabs with a balance control, or bridged into 1 in which case the balance control is disabled. Claims "class A tube preamp" but the tube is in there mostly to be able to say tube, the tube is biased clean, it doesn't use the direct coupled cathode follower which gives the typical voice of a tube preamp. Nothing like the tone of an SVT, more like an army of B15's. At $500 however, if you want a clean amp with exceptionally big balls, it's definitely worth it. Should handle pedals very well and built like a tank.