No one really talks about either Audionet or FM Acoustics. I would be interested to hear the impressions, especially regarding FM Acoustics.
In any case, there are probably 10 or so brands at the very top level to choose from, including a few Swiss, Danish Gryphon and Vitus, German Audionet perhaps, American D’Agostino and Boulder. Good for us.
I have heard FM acoustics electronics. I find their pre’s outstanding; the mid-level pre offered better dynamics and similar transparency and coherence as a matched transformer-based attenuator (silver). The amplifiers are stellar in reproducing the musicians’ energy and sense of rhythm, presence, and the sense of space (if captured in the recording).
BTW, back to your original question: d’Agostino’s big Momentums are great amps - the other models -- outstanding thought they may be -- are not in the same league IMO.
- I believe in that same category you have the big Dartzeels, Constellation, CH Precision, Soulution, FMA, the big Gryphons, the big Audionet & maybe the latest Symphonic Line Krafts.
I haven’t heard the bigger Boulders nor the MSBs mentioned above, so no comment there. The mid-range Boulders are excellent amps, but not in the same league (IMO).