I agree that freezing at zero is risky at the very best. One can buy a quad of nice Bugle Boy tubes used for $65 and get a warmer more organic sound without any risk of damaging the $3000 amp.
I know that cryo does seem to help the sound as I have done that to a Belles pre, wires and tubes. Zero degress in my home freezer is not cryo however.
This whole thing is most interesting to me to be honest. I am open minded, but must say it sounds very risky to me.
I know that cryo does seem to help the sound as I have done that to a Belles pre, wires and tubes. Zero degress in my home freezer is not cryo however.
This whole thing is most interesting to me to be honest. I am open minded, but must say it sounds very risky to me.

