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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 2 responses by wolf_garcia

wolf_garcia
6,751 posts
 
If I ever had doubt about the value of tubes in my little single ended  power amp, I'd simply buy a Pass XA25 and call it a day. 
wolf_garcia
6,751 posts
 
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? 
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