Tube for aesthetix pandora / romulus

JMW, you sound very knowledgeable about tubes. Are you sure he doesn't use different tubes in the sig versions? I only have read their site on the Rhea signature vs regular (my new unit) and this is what they said about tubes:

Any tubes that can be bettered by our special stock of graded and matched tubes are replaced.

I'm assuming that Jim has a special stash of tubes for signature users. Not saying that they are lower noise, add less static, open the soundstage, image better, have tighter bass or anything else that folks feel tube rolling does for a piece of equipment.

I just had this tube rolling discussion with an audio engineer who is highly respected by this board who disagrees with MOST tube rolling for a variety of reasons. I don't know the specifics, but it deals with coatings being burned off in the beginning and folks hearing what they want to hear after that. I personally haven't tube rolled as I said. I've heard friends gear when they have done this and didn't hear such huge differences for the costs involved, but I do think it's great that some of you have a subculture of audio and love doing this.

I honestly wasn't trying to slight you KNG. Just trying to give OP another side of the story since he has no idea what he's doing. Has he been back to post yet? I'd love to hear his thoughts on this and which tubes he decides on using and why. Always interesting conversation over here.

Guiche,
For the 6dj8 there are CCa, E188CC, E88CC and ECC88, 6922 and 7308, possibly others.

I honestly wasn't trying to slight you KNG. Just trying to give OP another side of the story since he has no idea what he's doing. Has he been back to post yet? I'd love to hear his thoughts on this and which tubes he decides on using and why. Always interesting conversation over here.

Ctsooner, I'm just offering my .02 and participating in the discussion.

I spoke with designers of my tube components. They all encouraged tube rolling and not one emphatically insist design only works with any particular tube.

Ctsooner, Aesthetix uses the same brands of tubes for their regular and Signature series. The Signature tubes may be more carefully selected, but they are current production tubes from the same suppliers. I just had my Aesthetix Rhea upgraded and spoke to Jim White about this.

If you own Aesthetix products, and want to use NOS tubes, they will refer you to Vintage Tube Services, as I indicated in my prior post on this thread.

Has anyone tried 5751s, such as a pair of Sylvania triple mica black or gray plates, in lieu of 12AX7s in the Romulus or Pandora? 5751s will reduce gain by 30%, but shouldn't be an issue with digital.