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Old 12-05-2015, 06:24 AM
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Formerly YB-2 Formerly YB-2 is offline
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Join Date: Jan 2010
Location: NJ Shore
Posts: 8,474
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The best sounding 6SN7 I've heard in my SLI-80 is the coin-base RCA/GE. They are late production tubes. May or may not help in your 300B amp. How many hours do you have on your Clarity caps? Took ~300hr for mine to finally settle out. Wonderful sounding upgrade.
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