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Thinking about a tube roll to Brimar or Telefunken

I am presently happy with the performance of my Aesthetix Calypso and Rhea. But, I'm wondering if there is anything else out there (that I'm missing). Presently the pre is running the stock 12AX7WB and 6922 Sovtek. The phono pre is running 12ax7LP,12AX7WB, 12AX7WB, and 6922 Sovtek for the respective gain stages. My question is this. Does anyone have a little experience/advise on a tube roll to improve what I already have going for me. Understand what I'm not trying to do is attenuate a particular problem, these pre's have none IMHO. Just looking for an overall improvement, if there is such a thing. What about Telefunken smooth plates NOS or Brimar long plates CV4004? I have seen threads on Aesthetix Callisto and Io tube rolls but don’t know if the logic is transferable. Thanks for any and all help as always!
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r_f_sayles OP
872 posts
 
sirspeedy70680@earthlink.net, No, no, no problem, my apologies. I did not mean to infer in any way a criticism of the information you were sharing. I do appreciate your viewpoint and was just making comment that Albert's suggestion to start with Tele's was spot on IMHO given we both have Aesthetix gear, etc. I am in agreement with both Albert and yourself that Joe S has very good and thorough information to share. It's also cool to find out from Albert that he and Joe S are friends and like friends, agree on some things and not on others. What a small world. And fine wine is always... well, Fine! Thanks again
nkj
130 posts
 
Albert,

In your post above you comment on the Aesthetix gear ( I presume the IO and Callisto) not responding well to the RCA 5692. Did I miss something? There was a informative thread by you some time ago ... praising the RCA red base 5692. Have you found something better?....Thanks

Nkj
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albertporter
4,949 posts
 
Sorry, my error. I meant to say RCA 5751 and my fingers automatically typed 5692 (one of my favorite tubes !)

Good catch !
nkj
130 posts
 
Albert,

I thought that might be the case as I've tried numerous 6SN7 types in my IO sig w/vc and I agreed with your orginal comments on the RCA red base working well..Alas my IO is down with one bad power supply (should be back this week I hope) and my new Berning should be arriving as well.. Hope the IO is repaired before the Berning gets here!

Just as I was trying to live up to your Sound Labs (in my dreams) you switched to the Dali's. Congratulations on what looks to be an incredible system... Nkj
pjl2122
83 posts
 
hello I have been told by others that the 1950s Mullard long plates with
the square getters are even more open and airy on top, then the 10-m, or most Siemens or tele,with a $ 300 + price tag, for the 6922 section ,what if anything worked for you ,is the output worth doing as far as hearing a difference ? Please help me out if you can please. My Calypso preamp has only 10 hours on it from the factory, and the factory runs in in for a 100 hours.
How many hours before I hear it open up ? thanks Paul.
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