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Life of KT150 tubes on ARC Amps

I have Audio Research 250SE amps and the tubes in it have 2400 Hours. I wanted to hear experience from other ARC users if they replaced KT150 tubes before 3000 Hours.  I am not sure if i need to replace them now or wait for some more time.   I dont have new set of tubes for me to compare with my current tubes and wanted to hear from other people who replaced the tubes.

veerapaneni

Showing 3 responses by stereo5

stereo5's avatar
stereo5
2,766 posts
 
I got schooled pretty good.  Beautiful system, all top quality pieces.  My congratulations to the owner.
stereo5's avatar
stereo5
2,766 posts
 
That’s one reason I wouldn’t go back to a tube amp.  I listen at least 8 hours a day, every day (retired) and that would be 2 full sets of KT150 tubes a year which equates to over a thousand dollars!  It’s a good way to go broke fast.  
stereo5's avatar
stereo5
2,766 posts
 
@jea48................

just because the amps are 22K each doesn’t mean the guy is rich.  For all I know, he could have taken a home equity loan on them.  It is a lot of money for anyone to own those amps and have to retube  them every 2000 hours.  Most amps will do 3000 hours but I guess ARC drives their tubes harder than most. 
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