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Leave tube amps always on?

Mark, the owner of Linear Tube Audio, suggested I leave my tube amps on all the time 24/7 if im listenting every day, and to turn them off if not using for a period of time, a few days or for example we go away.  His reasoning was that it uses considerable more energy to turn on/off on a regular basis. 

Do others agree?  Kinda risky since these NOS Mullard tubes ain't cheap and will soon be gone forever.   
aj523

Showing 3 responses by facten

facten
2,920 posts
 
I still turn them off even if I know that I am going to listen later
facten
2,920 posts
 
Per LTA's website " we estimate tube life for our amps to be in the 10,000-20,000 hour range."  Did they say what the tube life degradation from that level you'd experience if you turn it on and off as "normal" ? 
facten
2,920 posts
 
Despite my question back to the aj523, I do agree with big-greg's & tvad'e No responses; I always switch my tube integrated amps, or tube preamp off when not in use. 
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