I am trying to find the lowest noise 12AX7 for my new Canary CA-400 phonostage (4 12AX7s for about 60-65 DB of gain with a separate SS rectified and tube regulated PS). It is lovely sounding, but is just a bit on the noisy side with my Ortofon Jubilee and inefficient Magnepans.The stock tubes - Gold Aero Silver Series were OK, but not quiet enough. Low-noise 12AX7EH from the tubedepot were better, but a few extra DB lower noise would be better still. I ordered a pair of Cryoset 12AX7EH Gold Pins for the critical input position, with a hope of eeking out a slightly queter performance.
In other's experience, do the tubes that went through the cryogenic cooling get a bit quieter, or are the benefits mostly in the area of microphonics and dynamics?
This post is made possible by the generous support of people like you and our sponsors:
Topic - Do Cryogenically Treated Tubes Offer Lower Noise? - Dimitry 18:49:41 11/27/06 (6)
- Try tubes designed for low nois to start with - Carlos 18:49:00 12/3/06 (0)
- Save your money and buy a better tube - richardl 12:08:18 12/1/06 (0)
- Re: 6N1P + others shootout - Meister 13:06:03 11/28/06 (1)
- Excuse me, wrong subject above, low noise cathodes instead-nt - Meister 13:13:10 11/28/06 (0)
- Why do some tubes have less noise than others? - lipmanl 06:08:44 11/28/06 (0)
- Not Really - Chris O 05:36:47 11/28/06 (0)