In regards to having the tubes cryoed, I purchased 4 NOS Mullard CV4003 tubes from Upscale. I paid extra for 2 tubes to be Cryoed and 2 were not. The cryoed tubes lasted6 months and 7 months, the non cryoed were in the preamp for 2 years and still sounded good. I am thinking the NOS tubes got stressed during the process.
Cryo EL84 vs non / JJ vs EH
Not familiar with this tube. Using in Scott Mapleshade mod LK 48 for a few years in another system. EH have been in whole time. I know nothing on current production tube, I buy NOS for other system. I've never used cryo tubes but have with other things with good results. My EH lit up a bright red shut it down, need to order next week, I listen to it every day, any option appreciated.
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- 6 posts total
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- 6 posts total