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Old March 27th, 2008, 09:34 PM   #20 (permalink)
mwaym
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Join Date: Apr 2007
Location: anderson, indiana
Age: 43
Posts: 96
I have a Kuston tube 12a amp. It just has a tube pre-amp, and I can tell a difference after about 30 minutes or so !!! The amp seems to "come to life" then. It's a noticeable difference .
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