Rogue amps-- try 5751 instead of 12ax7

Use NOS Tungsol 5751s in my Cronus Magnum

Sebastien, take this for what it's worth as I am not partial to EL34s,I recently swapped GL KT88s out of my Ayon Spirit for Shuguang Black Treasures - to my ears they take the music up a few notches, more detail & dynamic -prior to these I found the GLs the best KT88s I used. There's a Black Treasure version of the EL34 , haven't heard it, but if it is as good as their KT88 it might be something to keep in mind at some point if you're interested

The 5751 is a well-known sub for the 12AX7 that works in MOST circuits. My experience is that the 3 mica black plate versions are the best of the bunch. My favorites are the early RCAs and GEs that have silver clips (looks kind of like braces) on the ends of the plates. Highly recommended!

I have used both RCA and sylvania 5751's in my Rogue M-180 with Golden Lion KT-88 reissues for several years to good effect. The GL KT-88 are getting a little long in the tooth, i might have to try the Shuguang Black Treasures,

I am going to try kt 120s on my rogue m180s next, I have gold lion 12au7s and 12ax7s on the way from rogue , should have them in a couple of weeks, but I was interested in the kt77s, what do they sound like? has anyone compared kt77s vrs kt120s? thanks, Chris

Here's a copy of what I posted a little while back concerning my "tube swapping" for my Rogie Audio Cronus. Mark and Nick at Rogue have always been extremely helpful. My system makes beautiful music.......
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04-03-11: Adam18

For me, my Cronus, being fed by my Rega P3-24/Exact 2/TTPSU and Rotel RCD-1072, through my Vandersteens, sounds better after I did the following : an RCA NOS 5814 to replace the center 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. I then replaced the original Svetlana EL-34's with a beautiful matched quad of Genelex Gold Lion KT-77's.

All this "tube rolling" was done after some pretty nice conversations with Mark and Nick at Rogue Audio, and I'm glad I followed their advice. They are a pleasure to work with.
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So, Dhcod..... I'm glad you're enjoying your Atlas. Happy Listening !