Herb Reichert of Stereophile often extols the virtues of the pairing of the Pass XA-25 with the M30s, though I haven’t heard it myself. I have the M30 XDs also, and have had them in my home with the Luxman 590AXII, Benchmark LA4 and AHB2, Line Magnetic 845ia, and primaluna separates. I prefer the LM above all the others, followed by the Benchmark. The LM is only 22 w/ch but is the most ‘alive’ and natural sounding of the group. I listen mostly to jazz and classical with it, so it’s hard to say when its 22 watts might not be enough, but 22 watts goes a long way, especially in a smaller room. My room is 21 by 14 feet. There’s plenty of bass with the LM but it is not super tight, perhaps the only downside. The Benchmark is just as natural sounding but not quite as musical, but with Harbeth it is a really good pairing/synergy and plenty of power. Initially I had the M40s with Benchmark monos, and I would recommend this pairing above any other (that I have heard to include Luxman separates). That said, all of these amps work well.
