I have owned both the Berning TF-10 and the Paragon Model-12. I still own the model 12. I found the model 12 to be far more musical than the Berning, C-J Premier Three, Precision Fidelity C-4 and a host of other preamps that I have owned. The sound is BIG, sweet, detailed, etc... If I were forced to sell five of the six preamps that I currently own, the Paragon would be the keeper. BTW... Bruce Moore designed the Model-10, which had too many bugs for continued production. Credit for the fact that the Model 12 IS reliable and sounds great should go to M.D. of Blueberry fame. With a little further fine tuning (which I have done on mine) the model 12 is a pure joy to own. Oh, and it is NOT difficult to work on. The Model 12A is a pain, due to its circuit board, wiring and chassis design.
