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Over in "Amps-Preamps" I posted a question about biasing a "slaved" KT150 on a brand new ARC Ref 150se amp. In short, it appears that I have a failing KT150 despite going through ARC's rigorous testing regimen and only 5 hours or so on the tubes. Over on Kevin Deal's Upscale Audio site, if you click on the KT150 you will find that Kevin put up this post from a customer;
"Greetings, I am sure you are aware the KT150 drifts, when new, even after "alleged" matching by other sellers AKA ebay or other. Your burn-in solves this problem.Prospective kt 150 buyers know this....many of the KT 150 Quads bought from small time operations cannot be used....they won't balance. I work at a custom tube amp builder. We now are ONLY buying your tubes or our customers MUST buy your KT 150'S or we won't set the AC/DC balance for them. Several customers have brought unusable "new KT 150" quads to us which after 10 hours, drifted so far, they would not balance....now unusable......and they saved 15.00/tube. Share this and save philes some money, and they will get longer tube life, and better sound.
Audiophiles, believe Uncle Kevin...his tubes are better. The 150's match so nice now......Only get "Real Matched tubes".........Jeff"
My question; is there something to this? Is the KT150 more prone to drift and instability or failure than KT120's, KT88's, 6550's et al?
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Topic - Reliability of KT150 a problem? - FSonicSmith 09:19:53 08/04/17 (4)
- RE: Reliability of KT150 a problem? - Jim McShane 10:21:35 08/04/17 (3)
- RE: Reliability of KT150 a problem? - mondial 22:00:30 08/04/17 (1)
- Thank You For The Kind Words! (nt) - Jim McShane 13:03:03 08/05/17 (0)
- RE: Reliability of KT150 a problem? - FSonicSmith 11:18:15 08/04/17 (0)