Atma-Sphere Class D… Amazing

After about 6 months of owning both the Class D Monos and my Pass XA30.8, I've finally settled on an amp, and recently listed my Pass.    I love the Pass but the two are so similar sounding to me, with a few minor weakness/strengths relative to each other that I consider it overall pretty even in my system at least.   My primary goal from leaving Pass was to get similar sound but without the weight and most important the heat generation in my listening room with no AC, and these monos fit the bill!

I've never heard Dartzeel but the differences this listener mentioned over on the WhatsBestForum between the Class D monos and the Dartzeel are very similar to my thoughts between them and my Pass.

"Ok, I have had the Atmasphere running for a couple weeks. They have only been out of the system a couple times for a day or 2.
I have played them back to back with my 12 year old Dartzeel NHB108 model 1 with SCNP network. First thing is to say, they are very close in sound. Its not easy to tell them apart. What I do feel I notice is the Atmasphere is more clean and has a tad bit tighter bass. The Dartzeel seems to have just a touch more background noise and plays a little smoother. The Dartzeel may have a hair more richness, but that may also be the perceived background noise.

The space around instruments and sound stage is almost exactly the same. The bass to treble extension seems the same.
Neither have any perceived peaks, dips, hardness or fatigue.
Both are very balanced and musical."

mglik....would you say the AGDs have a more organic or bloom characteristic than Ralph's amps?

@mglik 

Thanks for your opinion.

I am auditioning Orchard Starkrimson D amp right now which sounds pretty good at reasonable price.

Unfortunately, I can not compare between Starkrimson and Atma D since there is no dealer of Atma D around Seattle area.

I may have to buy Atma D blind without prior audition although Ralph kindly offer return except shipping expense if not satisfied.

Thomas

@lula 

Yes, I would say the main difference between the AGDs and the Atmas is that the AGDs do have more bloom tube-like sound. 

@mglik , you may need more time to give a final judgement. Do you have now both, Atmasphere and AGD monos, which AGDs? 

The most transparent sound i have ever heard comes from my 5 watts SET tube amp. So i don't think that transparency is a distinguished feature of solid state amps. Do you perceive that AGDs are less harsh and more open? Thanks