MetalHeadMike
Well-known member
Bias was like 10mA/tube on one pair and 19mA/tube on the other pair. It sounded bad. I normally don't notice a difference between hot/cold bias Tom but in this case they were drastically low and it sounded like ass.Interesting that your UU was severely underbiased....if that's the case for those amps in general, that would explain the reason why many of the owners returned the amp.
Speaking from experience, if I receive an amp that sounds terrible I immediately check the bias and 100% of the time it's WAAY underbiased. Typically manufacturers would do that to protect against warranty claims as these modern tubes are shit and test at barely 80% on my tube tester, when I've bought any new amps(MT100, EVH stuff).
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