Could you please what is the source connected to the inputs?
Normaly there are Micpreamps
Are you using balanced connection?
Of Course – only balanced connections
Could you please do the same test but connect something to the inputs. I mean to have some load on inputs.
I began the test with equipment connected, I ended up with nothing connected. Same results 🙁
Do you have a chance to test with external powered USB drive?
Sorry no, I can’t test with a powered drive. But I also tested with an USB thumb an there were similar noises.
But it is not allway there it is repetitive it is not like a “white noise”, i can’t describe it in english but
May I a send you a sample file please?