Aesthetix Calypso, Tuberolling questions?

Albert is indeed the resident guru in the Callisto and Io but Jadem6 has probably done more tube rolling and tweaking to the Calypso than anyone else out there. A good place to start is JD's review.

Thanks for the help!

I am using a Calypso with JC1's also. I've rolled Brimar-England, Tungsrams and GE Longplate 12ax7's, all from Upscale Audio. Still running stock Electro-Harmonix 6922's, have not rolled those. I listen mostly to rock, blues and some jazz fusion and chose the GE's.
I auditioned all of these tubes at the same time, and the GE were the best for me and my system. A great rock 'n roll tube, IMO. All of the above tubes were very quiet.
The stock Tesla's were decent, but a little closed in & rolled off in both directions,
again IMO.

Perfectionist:

Please describe the characteristics of the GE tubes in comparrison to the others when in your system, and explain why you feel that the GE is "a great rock 'n roll tube."

I too have the Calypso and primarily listen to Rock & Jazz. When I do get around to rolling tubes, I do not want to lose the detail/resolution & punch that I get from the stock tubes. However, I would be looking for a warmer/richer sound.

I really believe that this is system dependant...synergy is key.

Thanks!

You mighy want to try 5751s (Sylvania Gold pins are the holy grail of 5751s but my GE 5 star's work beautifully) in place of the 12AX7s they have slightly lower gain but some how brought more air and soundstage to my system. Mullard 10Ms may indeed be the best tube but even if you can afford such an expensive preamp the price of these tubes is absurd and really verges on the ridiculous. The brightest sound may in fact be found in a very humble tube such as a current production JJ or Ei. If your Calypso is new it already has that. You might want to see if rolling the 6922s to a Siemans or Mullard 2493 not 2492 does the trick. In general the manufacturer uses a tube it can getrepeatedly and believe it or not even with expensive gear cheaply so I tend to ignore their voicing experiments, despite the fact that it is counterintuitive. I have seen far too many fine pieces of equipment use Sovteks which I have yet to hear even halfway decent in my view they are terrible tubes. I don't get it.