I auditioned the Maxx3 with Pass labs X350.5, while the Isis was auditioned with Ayre amps. There was no direct comparison. Having said that, I lived with Pass Labs XA100 driving Kharma 3.2 for over a year and found that was a decent match, though not great. When I had the bigger Kharma 3.2.2, I tried it briefly with a Karan 270 and I was very impressed.
Pass labs are highly regarded by many people. But for me living in warmer climate, the heat generated by Pass labs amps is a consideration.
Pass labs are highly regarded by many people. But for me living in warmer climate, the heat generated by Pass labs amps is a consideration.