I use a pair of Conrad Johnson Premier 8A mono blocks. I was using Svetlana 6550 tubes on it, I switched to Tungsol 6550. Then Tungsol announced KT120s. Tungsol says it is suitable for 6550 users, but CJ says use only 6550s. Did anybody have an idea?
Great question John and I don't want to hijack this tread but I would very interested in any ones opinion of the TS KT120's and in which amp (mainly because it is such a new tube and I am also considering them).
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