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Originally Posted by Brad McGowan  Each of those preamps are equally fast. The opamps are all the same so therefore same slew rate. The input and output transformers are the only thing that vary. Actually the Red and Gold are the only ones with different input transformers. Everything else has the exact same input transformer as the Pacifica. The difference between the P-1 and Pacifica are due to different power supplies and output transformers, the Pacifica having a much larger one.
Brad |
Transformers change slew rate in varying amounts. It's the hysteresis - iron is slow, nickel is fast, blah, blah, blah.
The pacfica is my favorite all arounder pre. It always rules on overheads and gutiars. It's a nice match with a 121, better than the neves. Neves feel kinda clunky on a lot of stuff to me. API's and dakings aren't as sweet. I still usually like the MP2 best on bass.
The Red sounds closer to an API to me and the Blue kinda like a Daking (closer than the others). Sorta hard to judge by the clips. Gotta do a few sessions with the pre before you really know it.