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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
stereo5's avatar
stereo5
6,571 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. 
jetter
3,119 posts
 
@jea48................

"just because the amps are 22K each doesn’t mean the guy is rich."

If he isn't rich he isn't the sharpest tool in the shed.
jea48
4,792 posts
 
@ stereo5

Take at look at the OP’s 2ch system. I see $150K easy. Maybe not rich, but LOL, he sure ain’t poor.
Jim


jetter
3,119 posts
 
Good catch jea48, I'm now thinking he is the sharpest tool in the shed.  But somehow retube costs of ARC amps is a familiar topic here.
jea48
4,792 posts
 
jetter882 posts01-30-2019 7:11pm


But somehow retube costs of ARC amps is a familiar topic here.

Well thanks to gpgr4blu post, the KT150 tubes in the OP’s amps are good for up to 3000 hrs.


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