In Reply to: RE: Some advice needed re: Conrad-John PV2AR posted by airtime on August 3, 2016 at 07:22:15:
However like most newer preamps it eats tubes at an astonishing rate. I go through 6922 tubes every 6 to 9 months.Do you keep yours powered up 24/7? What indication do you get they need to be replaced?
I used to get several years of service with my last ARC preamp using 7308s. My current SP20 uses even more durable 6H30s.
Edits: 08/03/16
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