| 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 |