Hi Axspike,
Ive owned the Rogue 99 magnum and tried many diffident tubes. Herere two of my favorites:
1st : Sylvania JAN-CHS-6SN7GT (1952s 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 OBrian 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
Ive owned the Rogue 99 magnum and tried many diffident tubes. Herere two of my favorites:
1st : Sylvania JAN-CHS-6SN7GT (1952s 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 OBrian 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