Anything SS sounds better than D'Agostino ?

I do not have any of this brand,but I get rid of face book and Twitter almost the same time.  That's the right things to do  and for a corp. , That means they lose a channel to promote themselves, which gain my respect.

@inna

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).

I had d’Agostinos, and loved them in one of my rooms, but I also had NH458, which I upgraded to NH468, while I waited I was loaned a NHB108, in a month I gave my d’Agostino to the dealer, kept the NHB108 and the NH468.

One does not have to spend €180k to get close to heaven.. 

Once you hit the upper echelons of performance, "better sound" becomes even more subjective than otherwise. IT comes down even more to personal preference to determine what is best. Build quality is another issue and is probably less subjective, but alone build quality does not necessarily mean "better sound". The best products tend to be built by the smartest and most capable designers who will choose the parts needed to meet their goals. Depending on the target market, they may decide to always use the best most expensive components or those that may cost less but meet the requirements of the design just as well as the more expensive parts. Quality control and assurance is always key no matter what.  That is really what separates good products from the pack, especially when one is paying a premium for a supposedly "superior" product.