McCormack DNA1 options

All things being equal, the McCormack's are typically anything BUT "grainy, tizzy or forward". While there is probably room to move in terms of improvements with the upgrades, i would look elsewhere in your system first before thinking that this will be the cure. Sean
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Sean makes a good point, but my opinion would be to do both A & B. The McCormack upgrades are excellent and I'm a big believer in tube pre-amps. I've not heard your speakers, but they have a good reputation, and so I'd suspect your ICs or spkr cables first-- or maybe other things?

I had my DNA2 upgraded to Rev. A and love it-- smooth, liquid, dynamic, detailed, exc soundstage etc. And a friend felt the same about a DNA1 Rev. A. Good Luck. Craig

Corina,

I can't speak for the TLC or Merlin but I can for the DNA1. Is yours the standard or Deluxe? I have both a .5 Deluxe and a REV A. There is a world of difference between the 2 amps. The REV A is much smoother and fuller sounding. The sound is laid against a black background and much of the grunge is gone. In addition, I do run a King Cobra power with this amp. Pretty much everthing that is listed at: www.smcaudio.com about the REV A is true.

I own a DNA 1 that I bought new and had uprgraded to Revision A. Even prior to the upgrade, I completely agree with Sean'a comments. My guess is your problem is most likely with your cabling, (of course your speakers and CD may be playing a role too :) ) What kind of speaker/interconnects are you using?

I'm not familiar with your preamp, but like the others stated above, it very well could be your source. I have a DNA-2 LAE and I've not experienced the negative attributes you mention.

There is a chance that if the amp and/or preamp AC lines/outlets are shared with say your digital source, coffee blender, microwave, furnace, light dimmers, etc., there could be sufficient noise in the AC lines to possibly approach one or more of the attributes you mention. It's amazing how much more articulate your system can sound when each component is given it's own dedicated line, some kind of power conditioning, etc.. Even disconnecting the ground can lower the noise floor significantly.

Of course, if it's in your budget, a few days ago I saw a McCormack DNA-2 deluxe Rev A for sale in audiogon for $4200.

-IMO