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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? 
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
noromance's avatar
noromance
10,074 posts
 
+1 @tomic601  I've a set of 60s Telefunken Dynaco ECC83s I've been running since 1987 and they're still sounding wonderful.
jjss49's avatar
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
petg60
1,486 posts
 
If your unit is gentle with them a few thousand hours. But always have spares as tubes may go funny at any time. Tube rolling is trying different brands of same type or equivalent.
Try not to waste too much time though with tube rolling, nice for some experimentation but poor return on investment if obsessed.
hilde45's avatar
hilde45
5,283 posts
 
I would definitely try rolling the tubes in the Freya. Lots of good options for varieties of sound. Consider emailing Jim McShane about tubes, or Brent Jessee. Both are reliable dealers, they know their stuff, and don't try to up-sell. Tubes can be an OCD thing, and they can be expensive, but they don't need to be. Why not try doing one good alternative to what you have and see how it works for you?
ihcho's avatar
ihcho
612 posts
 
Depends.
My PrimaLuna Dialogue premium preamp tubes would last forever (like 10,000 hours), but my Audible Illusions M3B preamp tubes would last much less, about 2,000 (?) hours.  
I prefer the sound of Audible Illusions over PrimaLuna. 
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