Hey dude I have the answer and the tip for the LAST preamp youl ever need to buy,, I came acrost this unit from an old ad from Guitar for the practicing musician 1993 issue * its the Tech 21 Sans Amp GT2 * try to get The Booklet with it should run you around $130-50 but well worth the $$$$$ It’s an analog version of the pod but just preamp it modles Mesa Marshal and Fender but if you cant get the booklet the metalica setting is Level- 11:00
Low- 3:00 high- 3:00 and drive- full. Mic- off axis mod- hot wired amp- Messa or California …hope this helps plus you can record direct and play live direct with a warm valve amp tone without lugging a stack !!