Life of KT150 tubes on ARC Amps

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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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   

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


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I had a pair of KT120s last around 2 years of daily listening (amp on 8 hours maybe every day I'm around) to a Jolida 502p...I recently replaced a pair of KT77s in my current Dennis Had SE amp as one of the tubes stopped working...lit up, looked fine, no sound...damn...the good news is the amp only uses 4 tubes total, and one's a rectifier...smaller amps will bind you to efficient speakers, but otherwise assuage any concerns about tube cost being a big deal...ARC's tube wear seems extreme but maybe they drive tubes harder or something...are the new Carver claims of very long (five year warranty includes tubes) tube life an actual thing? 

It costs $4000 if I have to retube with ARC tubes and around $2000 if I buy from third party sellers. That is for every 2000 hours if they don't go bad before that. Might be I need to look for SS amps in the long run.