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Modified my Formula Preamp
I just finished modding my Formula preamp and HOLY SMOKES what a difference. It is amazing how changing just 3 components changed the whole sound of this amp. More marshally now but 100% MESA....and it doesn't have that annoying midrange honk anymore. I was seriously considering getting rid...- luigi
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- Replies: 37
- Forum: Rack Pieces
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L
20/20
Hi all, I'm new to the board (just got my formula & 20/20) and I am hoping to get some help with my 20/20. I am interested in adding an adjustable bias to my amp and I am having a devil of a time finding a schematic for the 20/20. Has anybody here done this mod? If so, could you please tell...- luigi
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- Replies: 14
- Forum: Rack Pieces