I am currently using Gryphon Antileon Mono Blocks and Sonata Allegro. I had a complete Mark Levision system before and found that the Gryphon power amp just doesn't match with Mark Levinson 380S. The Gryphon pre-amp is a much better match the Gryphon power amp. I found that the dynamic is much better, better sound stage, resolution......etc.
I would say the ML380S is a good pre-amp but just doesn't match with the gryphon.