Best Answer TheRealZap , 20 July 2013 - 04:50 PM
that may be attributable to the original amp.... (you'd have to be an amp tech to understand the why's etc...i'm not one...)
it certainly doesn't sound like a defective unit though.... (doubt the software would matter if it was a physical defect)
you might try reinstalling the firmware.
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Yeah, I found that if I turn off the hum completely it goes away. However, I find it strange that the amount of hum is determined by the drive nob.