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Old 01-28-2017, 07:04 PM
ariess ariess is offline
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Join Date: Jul 2012
Location: Baltimore
Posts: 763
Default How many hours do you get from your Ref 10 6550 tubes?

How many hours do you find you are getting from the 6550 tubes in your Audio Research Ref 10? When did you decide to replace them?

(mine sound great after 2500 hours which seems surprising, though half those hours are idle).
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