Has anyone replaced a set of KT120s yet? Just wondering how long these should last as I've been running 'em hard and often for a year and a half and they're still moving electrons properly.
FWIW, I drive my ARC VS-115 with KT-120s. ARC still recommends replacement at 2000 hours. Do they have a longer life? Dunno. Maybe yes if you drive the tubes with quality electrons. I'd call the factory and ask the techies.
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