I've read hear and there some stuff about these amps. I'd like to know some more specific things and clarify what I've read. How are they voiced? Do they have a mid-hump? Are they flat? Are they scooped like 60's-to-today fenders or hi-gains?? How is their clean channel? Can you get rid of the grit and get a shmmery clean sound? I used to have a DSL 401 and found the cleans simply ok. Anyone can make a comparison? What is the fuss about them being intially single channel and later split channel? Are they suitable for cleans? Can they do metallica-kill-em-all or black album gain? Or are they a one-trick pony doing only middy crunch? When did their production start and when were they discontinued? Are they collectible treasures or leftover junk? What would a fair price be in the US and in Europe for one? Thanks for reading!