Quote:
Originally Posted by RLF
For other owners of the Ref 6, how many hours did you have on it when you replaced the 6550?
I know ARC recommends a life of 2000 hours for the 6550. Right now I have 1805 hours on my Ref 6 and it still sounds great. I have a new 6550 ready to go when the time comes.
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I've found the 6550C or 6550WE can last 1800 to 2400 hrs in ARC gear, although the early sounds of a tube degrading can be subtle. Of course there are exceptions. You can always swap in a good 6550 and compare.