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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
jea48
4,610 posts
 
Average life for power tubes is 1500 to 2000 hours.

From Audio research:

Power Amplifier

Output tubes last up to 2,000 hours.
Note: Near the end of the tubes sonic life, aging vacuum tubes may degrade the sonic character of the product(s) they are used in. Make sure to replace your tubes before outright failure occurs. We stock vacuum tubes and match sets to the specification on each model. Audio Research tubes undergo thorough testing prior to being selected for use in our equipment. To order replacement tubes please contact your local dealer or send us a message at service@audioresearch.com for pricing information.
http://www.audioresearch.com/ContentsFiles/FAQs_April_2018_rev3.pdf


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stereo5's avatar
stereo5
6,512 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.  
jea48
4,610 posts
 
@ stereo5   

At $22,000 each I would be willing to bet a $1000 a year is pocket change.
Jim


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