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Impact of Calypso 6922 tubes?

I am trying an Aesthetix Calypso preamp. This is a newer unit with no noise floor issues whatsoever, and the stock tubes are very quiet. I tried replacing the stock 12AX7's with a nice pair of NOS Brimar tubes I had sitting around and heard noticably more body and a richer tonal presentation. To those of you who have this preamp, have you noticed similar changes when using NOS tubes, and would I be likely to hear similar changes if I were to replace the 6922 output tubes with NOS?
mitch2

Showing 1 response by rhythmace4218

rhythmace4218
53 posts
 
Mitch, I have owned the Calypso for about a year now, and think it is stunning. It replaced my ARC REF II mkI, and I've never looked back. In my experiences with tube swapping I settled on Ediswan 6922's and Telefunken 12ax7's. I actually liked what the Ediswans did for the sound better than what the tele's did. The eddies are very smooth with an incredible mid-range. I also plan on experimenting with the Mullard/Brimar BVA 12ax7's very soon. Please let me know if you have any other questions. I hope this helps.

Darrin
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