From yahoo Sent Mon, Jun 13th 2016, 07:34
From yahoo Sent Mon, Jun 13th 2016, 07:34
The hum is probably caused by a ground loop. Due to safety reasons all metal parts of the A-100 cases are connected GND AND to earth
shield of the mains connector. If another component in your system (e.g. mixer, power amplifier ...) is connected in the same way a
ground loop is generated. The problem is that the safety reasons (all metal parts connected to earth shield) contradict to the audio
connection rules (not GND loops). Possible solutions are:
using special cables with GND connected only on one side
DI boxes
disconnecting earth shield (not recommended)
Best wishes
Dieter Doepfer
> Im still interested in knowing what the original cause of the hum is (and a solution) if anyone knows.
>
> Thanks!!
>
> Scott
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