I have run a Audio Research tube preamp with a Pass X350 for over ten years. An excellent combination. I had stayed away from tube amps because of the reliability ‘ biasing need. Then a couple years ago the Audio Research rep came through with the new ARC REF 160m (mono blocks). Micro processor controlled tubes... no biasing and greatly increased tube life... finally I thought. As soon as the REF 160s comes out I’m getting one. I did. As soon as I swapped it in I realized I should have put up with a tube amp earlier. The richness of the midrange and bass simply isn’t in the same ballpark.
The Pass XA series will be more like tubes. If you are headed that way. I think it would be a really difficult transition. But I would go with Pass, he is an outstanding amplifier designer.
The Pass XA series will be more like tubes. If you are headed that way. I think it would be a really difficult transition. But I would go with Pass, he is an outstanding amplifier designer.