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Rogue Atlas Magnum sounds bright -- any recommendations?

Gents, I need some help here.  I am making a move back to a tube amp, in place of my McCormack DNA .05.  I just acquired a early version of the Atlas Magnum with KT90's and it sounds excessively bright to my ears.  It has stock tubes.  I have a Don Sachs preamp driving my Spatial Audio M4 Triode Masters.  

I need to tame this brightness to better enjoy this amp.  Thanks for any input you can provide.   
whitestix

Showing 2 responses by hifiman5

hifiman5's avatar
hifiman5
1,832 posts
 
Any particular reason you're taking the DNA .05 out of your system?  As SS amps go, the .05 was well regarded for being a smooth performer rendering fine detail.

If you really want to max. out the .05 you could call Steve McCormack at SMc Audio to see what he could do to update it.  I recently had my DNA-1 upgraded to Gold Special status and it is fabulous.  Not a lot of 💵 for the extensive upgrade.
hifiman5's avatar
hifiman5
1,832 posts
 
@mechans  +1. Everything I've ever read about the Cardas Golden cables indicates that they were well named.  I can't speak to the tube situation but what you recommend makes sense.

OP - Agree with @donjr  give Rogue a call.  No one knows their gear better than they do.
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