While I am at it John,

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Time to recap my HCA1200 II's. Love them, just getting noisy with age. Going to add balanced inputs while I am in there. ( Jensen, THAT, Op-Amp or mod IPS, I have not decided) Anyway, while I am in there with it all apart, any suggestions or hind sights? Carefully tweak the bias when I am done of course.
Need to test my 750 too. Even my Zone 3 is quieter, and it was no all star.
 
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