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Mcintosh C 220 pre amp tube life....

Hi Folks:
Recently purchased a McIntosh C 220 pre amp (Store demo) with about 200 hours on it. Any idea on how long the tube life is for a 12AX7 A set of tubes in a Mcintosh? I also bought the MC 252 amp to go with it. Wonderful combination. Just wondering if one listens on average of 2 to 4 hours a day, how long I should go before changing the tubes out. Thanks!
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Showing 1 response by hififile

hififile
236 posts
 
I have owned the C220, C2200 and now the C2300. I have never needed to replace my 12AX7's. I use my preamp most of the day for my fm. I think the tube life also depends on how many on/off start up cycles they endure.

Very satisfied with the tube life and reliability.
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