It is tough to argue with someone who claims to hear a difference with something like this. I personally can hear no difference. As an engineer I can tell you that there should be no difference assuming that the rate of cool down and warm up is slow so the tubes are not damaged by the cryrogenic treatment. Because of my training, however, there is always a chance that there is bias in my judgement. Meaning I am hearing, or in this case not hearing, exactly what my preconceived notion causes me to expect to hear. If you are so inclined, why not buy two sets of tubes, one treated and one not, to decide what you hear? I would be interested in your opinion.
Last edited by Bill Stevenson; 08-05-2015 at 10:38 AM.
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