Reply To: Noise, cracks and peaks with 44.1KHz "rectangels"

Mikhail, presumably you tried the workaround in my previous post, of routing the AUX through the Ultranet P16 bus before going to the recording card. Or try routing out the AES50A interface, and back in on AES50B (just a loopback), since the issue seems sensitive to how signals are routed, and you might stumble on something that works.