Just picked one of these rascals up, after trying/buying too many other downsized amps for small combo use. Darn nice amp, but Ampeg/SLM/LOUD doesn't have squat for documentation. I have the original User Guide (no schematics/service info, but moderately informative) scanned and saved as high-res .pdf files, if anyone needs a copy. May have a copy of the service manual/schematic shortly, as a LOUD Tech Support rep has shown unusual interest in making this happen for me. They'll probably lay her off later today. :-0 PM me if you need any of this. *Additional info* I'm impressed. Just got schematics from the LOUD rep, and they're available as .pdfs in case anyone can use them.