McCormack DNA-1 Gold or DNA-225

Well, the amp arrived a few weeks ago...I've only managed to get about 10-15 hours of listening so far based on a crazy work schedule.

First off, this a finely crafted amp. I also didn't expect the size as I've only seen some pics of it, fit and finish are top notch.

The first few familiar recordings I played, I was immediately taken in by the smoothness and clarity this amp provides. Granted I need to give it time to bloom, but so far it's taken the soundstage to another level.

All the instruments and vocals seem to have increased clarity in the quiet passages, the highs are not harsh in the least bit, very smooth and natural. The light, delicate taps of the ride cymbals have pronounced decay time, it's quick when it needs to be, and slow and smooth as well when required.

I was able to hear the wood of the guitar at times before, depended on the recording, but for the most part it was in the background, albeit slightly hidden. Now it's there and I will contribute that to the lower noise floor and just the overall low-level dynamics this amp puts out.

The bass is full and tight, the amp just doesn't seem to run out of steam and nothing gets smeared along the way when you turn it up.

Overall, it's like a big, dark, liquid hole in my listening room filled with holographic instruments. The big (well-modded) SDA's already provide a huge soundstage, but the DNA allows me to step right in front of it. I won't say it's like lifting a veil, it's more like being right up to the stage. Everything appears larger and clearer,  but not overwhelmingly so, this amp just seems to do everything so well. 

I would like to swap the fuses for some Synergestic red or blue in the very near future after it gets some hours on it, but for now I want to let it open up first.

I finally got my DNA-1 monoblocks set up and burning in as I write.
I concur with dyl71, the sound is very clean and holistic.

My only problem is that the Vandy crossover for my 2wq subs only goes to 22K ohms in balanced. I think I need a lower setting. When I get some energy, I'll try them with the RCA cables and RCA xover, which goes down a bit more. This will probably be a new post comparing my experience with Atma-Sphere, McCormack and Ayre.
Re: Synergistic
I recall Pat mentioning how much better the amps would sound using them. I can't remember which one- Red or Blue.
B

When you are talking about replacing the fuses in these amps, (mine is a former DNA-225 which takes 7, I believe) on the circuit board), ...are you referring to replacing these or just the one on the ac input?

7 X $150.00 adds up quickly. I need to call in to Pat. Two years ago, when my last upgrade was performed the fuses recommended then were the Hi-Fi Tuning.

@slaw 
Yes, do call Pat, he can give the best info.
As far as replacing all the fuses, then yes, you should change them all out, if possible. Though even replacing just the AC fuse makes a difference.
The HiFi Tuning were his choice, but I recall this past month he said the Synergistic fuses were the way to go. Again, I can't remember which one.

And, my DNA-1monoblocks are back and running in nicely. -Definitely giving the Atma's a run for the money...
B

I have the DNA-1 with the Gold + Platinum upgrades. Although I have  Stereophile Class A mono block amplifiers that I was using, I am back to the DNA-1. Adding the MicroZOTL MZ2 preamp and using it with the DNA-1 is a killer combination! I have had my DNA since 1994 and upgraded it in 2014 - this heirloom will definitely be passed to my son.