2. amps-preamps
  3. 141564-4358

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 audioconnection

audioconnection
1,271 posts
 
Back off on the Bias
  Install some new Tung Sol KT 120s or Gold lion 88s in there and you will see what an amp it is
 the meek KT 90s were 7 plus years ago mostly sucked.
 That amp has great transformers.
 Best JohnnyR
audioconnection
1,271 posts
 
Whitestix
 You would also have nice surprise you can update to Magnum II status
  Rogue Audio is in PA and if you are anywhere near they can bring that amp up to a beast level for very reasonable.
 The Atlas Mag II driving Vandersteen 3A Sigs Lou Reed and his fender on Animal Serenade live infuses a major smile and wow on everyone's face when listening.
      Best JohnnyR
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