No problem Matthias.
And no, it’s not harmonic at all, it’s really loud digital crackling. This is by no means an artistic effect, it is a problem that makes me stop immediately and look for the problem. But I don’t know if the problem is on my side: a defect cable, too hot gain (though I looked), a faulty H9000 (but until now that’s the only algorithm that made that noise). I run my H9000r on 96K. I tried for 20 minutes. I’ll look again later, as soon as I have time.