After ... 28 years of wondering about these, I finally scored a Langner DCP-1, created by Todd Langner who worked for ADA and helped design the MP-1 & MP-2 Preamps. And I'm here to tell ya.. it far exceeded my expectations !! Only 60ish of these made in the early 90's for recording artists, this all tube (5 12ax7's) is a gain monster with crystal cleans this side of a vintage Blackface Fender.. I'm no longer looking for a Bogner Fish. In minty condition with no ear rash. Hope y'all dig it. Any Todd Langner fans here??