CAT Preamps vs Amps


I'm a proud owner of a CAT JL2 amplifier. Most of the threads on Audigon say great things about CAT's amps JL 1-3. People laud over the musicality, transparency and dynamics of these amps. However, when it comes to the preamps (Signature and Ultimate versions), it seems like the reviews are a mixed bag. In many cases, some CAT amp owners use other preamps.

Therefore, are the current CAT preamps (Ultimate) as good as their amps in terms of musicality, transparency and
dynamics? Are they on par? If not where do they fall short compared to the amps? What are better matches?
aoliviero
Bombaywalla: I recently got a batch of Tele 12AX7's and with the help of a tube tester, I was able to match (by output signal strength) several pairs for my Aesthetix gear. I still have several of these left. If your short on a budget but would like to give them a try, I can ship a pair to you. I also have found the EI tubes to be quite impressive as well and they tend to be dead quiet vs. the majority of Tele's...but they don't have quite the Tele midrange magic. I think I also have one remaining pair of Mullard 12AX7 that you could try; I like these a lot due to their dynamics and very good tonal coherency So I could send you 3 pairs for you to try in the CAT. Should not be more than a few $ shipping costs. This way you can try these out before you spend a lot for something that might make a big difference....and then ship them back to me at a later date. Let me know if you're interested.
John
Jafox, I dont need any tubes, I want to tell you that you are what we all should be like, helping people, that is what it is all about, I get a warm fuzzy feeling when I see people help each other,you are one of the best, I wish you well in all you do, If you ever need help, you can count on me!!!! Really. Marc
John,
You are most kind to offer me a chance to listen to these prized tubes!
Yes, I would love to have a chance to hear them in my system. Ever since I got the Tele 6922, I've been conjecturing just how the sound would be if I could swap in a pair of Tele 12AX7s.
Yes, Ken Stevens uses the Ei 12AX7 for a good reason, I suppose!
I'll send you an email off-line re. your generous offer. Thanks much!
John, we love you dearly. We should all get together, sit in a circle, hold hands, turn out the lights and sing "Kumbaya"
I do not know how the current units are set up but the earlier preamps (Reference) had their capacitor quite solidly glued to the board with some glue that only CAT can dissolve for service of the caps.

I intended to go through my new (used) CAT Reference phono preamp and upgrade the caps, wiring, and tubes. When we spoke to the owner, Ken Stevens, he made it quite clear he want ONLY CAT to work on his products. I posted it for sale the same day and it is long gone. Too many other options to put up with that proprietary nonsense.