i'm just bought a new unit everything works fine except
when i'm using a XLR outputs in a unballanced mode (cable is soldered correctly according to manual, pin 3 is unconnected) it makes signal clicks on a some specific audio signals. the problem is present on both hot and cold pins separately and not heared in ballaneced mode
i've already defineded that the problem is not in any software aspect such as buffer, sample rate, os settings, etc even not in my speakers, or poweramp, or usb controller. the clicks are still there in every typical situation i mean specific audio signals
the clicks is present on speach and almost gone in music signals. when i'm turning on a tone generator clicks are not present on a sinus wave on any frequency or on any volume if volume or frequency is still. but if i'll modulate the volume knob with a LFO then clicks will be present on some specific LFO frequencies on some specific volume levels on some specific tone frequencies

in the video i'm connecting xlr otput (1 ground, 2 hot, 3 unconnected +4dbu) to xlr input (1 ground, 2 hot, 3 grounded, pad on) and tweaking some tone generator. monitoring is done by headphones output connected to power amp so you just hear an xlr output issue

https://www.youtube.com/watch?v=6n38ITM … e=youtu.be

some speach blogs