Mid 1990's Langner DCP-1 High Gain Tube Guitar Preamp
These are very rare, not many out there.
5 12AX7 Preamp tubes
Todd Langner did some of the premier Marshall amp mods in the 80's and 90's. He consulted for A/DA on the A/DA MP-1 Preamp.
He produced a very limited number of preamps, power...