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NOS tubes for Aesthetix Calypso

I recently purchased an Aesthetix Calypso. I really like the preamp, however I would like to purchase some NOS tubes for the unit. First priority would be a liquid smooth midrange, second would be soundstaging, third would be frequency extension. I would really appreciate some Calypso owners offering up some experience and suggestions with the NOS tubes. I would also like advice on where to purchase NOS tubes. My system consists of Maggie 3.6r's, 2 Vandersteen 2WQ subs, A SMC modded McCormack DNA-2, Resolution Audio Opus21 cdp, and all Purist Audio cabling. Thank you in advance for all your help.

rhythmace4218
rhythmace4218
sburton
29 posts
 
You want Mullards. When I owned the Calypso I found them to be very smooth.
Steve
nr9
35 posts
 
I have the same preamp. I’m very pleased with it. I’m also looking for tube replacements for both the 6922 and the 12ax7. I heard that Mullard 10M and Telefunken are fantastic tubes. I wonder where to buy these tubes.
rwd
695 posts
 
Mullard 10's will cost you a fortune. Read the threads by Perfectionist. He recommends a few since he did a great deal of tube rolling. Also the great Jadem6 wrote a fabulous review and also identified so good tube to use with this pre-amp.
I just got mine and have Siemens 6922's and Dynaco 12ax7's. However, I expect to do some tube rolling. Why? Because I still have my Audio research LS 25 MKl and this per-amp is giving this new Calypso a real RUN FOR THE MONEY!!!!
Rick (RWD)
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