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How long can preamp tubes last?

Good evening Ladies and Gents
Trying to learn! I have had a Shiit Freya + preamp for about 1 year now, and it has about 450 hours of play time, with original tubes.
Is it time to change the tubs? What tubes/brand would be recommended to purchase?Β 
As far as budget, I really have no idea what they cost.
Also, what does the expression" rolling the tubes" means?

Any information would be welcome.
Thank for reading.
rockanroller

Showing 3 responses by jjss49

jjss49's avatar
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jjss49
6,612 posts
 
depends, but usually very long - e.g. 10,000 hrs or more

some notable exceptions though

schiit freya is a current model -- just email them and ask what is their experience with other users of the unit
jjss49's avatar
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jjss49
6,612 posts
 
AudioResearch tube preamp tubes don’t last that much as well as Sonic Frontiers to the best of my knowledge.


but then again, audio research as a company lasts much much longer than sonic frontiers... πŸ˜†πŸ˜†
jjss49's avatar
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jjss49
6,612 posts
 
Tubes in my Mcintosh C220 have been in place for almost ten years, used on average about 15-20 hours per week. When I had the preamp serviced this past fall, I had the tubes tested. They tested like new. So, the answer is, a very long time.

fify --- so the answer is a very long time IN A MAC C220

try asking an owner of an audible illusions modulus 3 how long the quad of 6dj8’s last... running 20 hrs a week... πŸ˜…πŸ˜…πŸ˜…πŸ˜…

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