2. amps-preamps
  3. 1104425599

Rogue 99 Mag re-tube Q

I want to re-tube my Rogue 99 Magnum and am unsure of what my choices should be. I know what I'd like to hear but I know jack about getting there. I listen to a wide range of musical genres and prefer a well defined, rich and wide soundstage at low to medium levels but want the shoot out the lights punch when needed. I'm looking for a do it all set up. I've heard that other Rogue owners like to split up the tube pairs so as not to attenuate the shortcomings of one tube type. Price is an object but for 4 tubes I think I can afford almost anything except maybe NOS TungSols or Mullards. Any intelligent thoughts are appreciated.
axspike

Showing 1 response by dbui1

dbui1
28 posts
 
Hi Axspike,
I’ve owned the Rogue 99 magnum and tried many diffident tubes. Here’re two of my favorites:

1st : Sylvania JAN-CHS-6SN7GT (1952’s tall bottle): They have very nice top end extension, liquid treble, lush mids, and solid bass also a bigger soundstage.

2nd: KenRad VT-231 (6SN7GT, mid-1940's staggered plates): killer bass, very dynamic, a bit dark and very smooth.

I talked to Mark O’Brian and he mentioned the layout of tubes inside the 99. The 2 on the right are from top to bottom: right channel amp tube and left channel amp tube. He suggested using the best tubes in these 2 slots. The 2 on the left are from top to bottom: right channel mu follower and left channel mu follower. The two tubes on the right are about 70-80% of the sound while the two tubes on the left contributing 20-30% to the sound. Good luck and keep us posted
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