D'Agostino Progression monoblocks replacing my Theta Prometheus monoblocks

George, After changing from the Theta Prometheus (which is a really great sounding amp) I have had a pair of ARC Ref 250 SE monoblocks, and Momentum monos for a back to back comparison. All three were with the same ARC Ref 10 preamp.

Which cables are you using?

After changing from the Theta Prometheus (which is a really great sounding amp) I have had a pair of ARC Ref 250 SE monoblocks, and Momentum monos for a back to back comparison. All three were with the same ARC Ref 10 preamp.

Couldn’t get 3 more opposite amp topologies.

I'm surprised the Momentum monoblocks didn't push your buttons. I know the  Progression is a step up in power, but the topology will be similar to the Momentum, and should have had enough power for you.   

Cheers George

Not surprised, I always thought Theta gear was over-hyped.  

Even if you thought Theta gear is "over-hyped," the Prometheus is unlike former Theta gear because of the use of Bruno Putzeys NC1200 amp modules.  I was curious whether the linear power supply in the Theta version "cured" the problem I had with the sound of the Hypex/Ncore Class D amp modules powered by their SMPS.  Based on the comments, I guess not.  I do not blame Theta or David Reich for not being able to pull off a trick that no one else has been able to accomplish with the Ncore modules.  I know I am much happier with my conventional Class A amps.  I do own another amp that is a David Reich design, a McCormack DNA-2 LAE with SMc Signature upgrades.  I like the sound of that amp better than the Ncore monos too.