Rogue Cronus Magnum Tube Rolling

Pre-amp tubes:
3 x JJ12AU7
2 x JJ12AX7

Yes. I would suggest putting a Mazda Cite 12au7 in the center pre amp position. I have it in my Cronus Magnum and it's outstanding. Crisp, clean, clear and a very 3D holographic sound without sounding harsh or brittle.

The Cifte is flanked by 2 La Radiotechnique 12au7 in my amp. All from Kevin at Upscale Audio.

I think you would be very happy with the above. You could start with the one Cifte and take it from there!

Thanks Bajaed. I wish I had seen your response earlier. I would've tried them. I did order some Mullards from Upscale Audio. Will update after receipt and installation.

I had a wonderful experience several years ago, dealing directly with Mark
and Nick at Rogue Audio. With their guidance and thoughtful advice, I
swapped out all the tubes in my non-Magnum Cronus, and the sound of
music has been sublime. I replaced the original Svetlana EL-34's with a
beautiful matched quad of Genelex Gold Lion KT-77's.

The five small tubes were replaced as follows :
an RCA NOS 5814 to replace the EH 12AU7 gain stage tube, a pair of GE
NOS Five Star 5751 "goldpins" to replace the Sovtek 12AX7 input
tubes, and a pair of GE NOS 12AU7A's to replace the EH 12AU7 driver
tubes. Definite improvement !! I'm not sure how to describe it, other than
saying the music simply sounds better.

I also have 2 Mullard 12ax7's from Kevin in the Cronus. Very nice sound. The rich full sound of the Mullards seems to blend well with the 12au7's mentioned above. I bet you'll like them.

Adam, you can't go wrong with advice from Mark and Nick. What did that compliment of tube set you back? I may have to try that combo down the road.