About the BIT-15 . . . I am thinking of it for my 4B3. Right model?
A concern is any noise from the toroidal transformer. I have several other components with transformers that emit mechanical hum, which I've overcome with AVA "Hum Dinger" boxes (these are said to counteract DC on the AC line). My listening room is extremely quiet, so I need to ask, does the BIT produce any noise?
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