D’Agostino Momentum stereo vs D’Agostino Progression Stereo Amp

Looks like your dealer can’t afford you the flexibility of audition. If you are buying a new amp from a dealer, he should provide you the full service, i.e. in-home or store demo of the amps you’re willing to buy. If he is not capable of providing you full service then I would look at another brand. 

If you buy used Agostino amp then you’re assuming all the risk. If you like it, you keep the amp and if you don’t then resell it. 

I am sorry but if I am spending $35K - $22K, I would want to hear that amp first before purchase. 

The top of the line Luxman's do not do too shabby either. :)

Dan is one of the most disreputable manufacturers of equipment I can think of. I owned one of his Preamps. 8 years into its life one of the micro potentiometers broke. It was a custom pot and he did not keep any in stock for repairs. He told me to get a pot from Radio shack and mount it on the outside!!! A $6 K preamp back in 1981! If you think you are making a lifetime investment forget it. Do not go near any of his used equipment. If something goes you are screwed.

Thats why i got the Audia flight Stremto #4 power amp and am very happy, looks and sounds great.

If you check my system page you can read a brief comparison of the momentum and the Ayre monos (should be similar to the S250, just more power).

I had multiple cases of the original Ayre (non twenty) mono main board going bad after about 1.5-2 years - it was a known issue that I don’t think they were ever able to get the bottom of. The twenty doesn’t appear to have the same issue since it doesn’t use the problematic component. I didn’t have any issues with my twenties but only had them for a year. On my M400s, one of the input boards went bad after about a year. My dealer got D’Ag to ship me a new one and they showed me how to swap it out which was pretty straightforward.