Hi guys

The following signal path:

1. DAW out - Fireface out - Hardware processors- Fireface in - DAW in

In my DAW I use out 3-4 and then back in on 5-6 which goes out on speakers via master out 1-2.

The problem:

The chain works perfectly on my speakers. I hear just my master output 1-2.
If I try to check the signal in my headphones (FF400) I hear two signals. I think the one going to the hardware processors AND the master output.

How can I fix that?

Thanks a lot.

Cheers
Alecx