Hello OPZ users,
Having my unit first day, I noticed hi freq noise when more leds, especially white are active (i.e. when holding mixer button). Good audible on headphones, but also on speakers, only masked by other higher freq sounds. Quite clearly audible i.e. when master filter is down and pressing mixer button, but any active leds are doing it - more of them are lighting, more the noise is.
It usually fades away when sound is stopped, probably with main amp turned low/stand by and it’s quite independent on main on/off volume knob.
When doing more bass oriented sounds, it’s really annoying, ruining not just focusing, but also direct audio recording.
It is not known usb ground noise, even it is probably some kind of not good shielded noise, too.
You can also see video below, recorded via direct link to fixed manual volume on camera. My questions are:
- Is it only my unit doing this?
- Is it only couple of them doing this-or it is common issue, but not everybody cares about it?
- Do you think firmware could fix it? Do you think next production runs would fix it?
Thanks for checking your unit and letting me/us/TE know, if there’s bad QA, or engineering questionable worth the pricetag.