Discussion about the Korg PolySix synthesizer

Again, this solution is equal to taping the ground pins and should never
 ever used permanently.

A DI-Box is the solution to this problem. They are inexpensive.
(Cheapest 2-channel/stereo one here in Europe for approx. 20\u20ac.)

I have experienced noise/humm with USB audio interfaces because of
"dirty power" over USB. That's why I was asking whether the USB thingie
has its own power supply.

   Niels

Chromatest J. Pantsmaker schrieb:
> Does the hum sound like 50 or 60 hz (depending on where you live)???
>
> Get a ground-lift adapter.  They sell them to plug your grounded
> (three prong in america) equipment into older 2-prong outlets.  Use
> the adapter on your polysix or your computer.  I'll let you make the
> choice, but I recommend the polysix.
>