Op-1 field to ep-133 k.o. usb-c noise

When I link the OP-1 to the K.O. via the USB-C to USB-C T.A. cable I get crackling and popping noise.

When I run it into my Komplete Audio 2 II it’s even worse.

If tried other USB-C cables. It’s not the OP-1 Field, it’s originating fro the K.O. C-port :frowning:

Frequently connect these 2 over USB for clock, and start stop, OP-1F to ep-133.
Haven’t noticed any noise over here.

Are you passing ep-133 audio over into OP-1F?

Yes. Exactly. I’m running the audio from K.O. output into OPF record, which has no noise.

When I connect USB-C KO to USB-C OP1F I get noise but it is more faint.

If I go USB-C OP1F to USB-C KO it is less… but it is still there.

try a ground loop isolator
either audio or usb

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