In my case if you read the replies ifi defender didn't work either . When I installed ifi defender plus a very high pitched noise introduced in the speaker and very prominent .
Sure the device is a rip off and did not work in most cases and it can cause other problems as you noticed.
Nevertheless it exists and it is marketed to solve this kind of ground loop issue.
Because its a common(mode
) problem.
Do you now any dac having quasi floating to resolve this issue ?
not from the top of my head. but some of the bigger more esoteric (expensive) dacs have USB modules with isolation
https://www.audiophonics.fr/en/dac-...mi-i2s-input-24bit-384khz-tcxox2-p-12379.html
I would not suggest going this way.
I would uses a (powerd) USB hub as a first try. sometimes this is all it needs.
if not as i said
USB to Toslink, Toslink to DAC.
If there is still a problem upgrade to a dac with balanced output.
If there is still problem uses Isolation transformer.
If its still there call ghostbusters.
There is some intermediate steps you can do:
Okay, the new thing is the popping and clicking that even persists when disconnecting the hypex completely. I tried about everything: BIOS settings, energy management adjustments, latency analysis... I will try out some different HDMI cables and ports tomorrow and try out toslink for my TV...
www.audiosciencereview.com
Or Ferrites.
https://www.audiosciencereview.com/...measurement-and-comparison.27937/#post-970936
All this will Reduce the problem but the best and most effective step is to go Optical.
Upgrading the DAC to Balance is also a good idea but expansive and not by itself guranteed to be 100% effective.
Ferrites beads are ceap and won’t hurt (good practice if you know you have noisy PC/USB) but the only reduce the noise.
Isolation transformer are often very effective (the good ones) but the good ones are also expansive and the Lower audio quality significantly.
this is why they are only a last option.
don’t uses crap like this on a good DAC.
Your better of with a 10€ Apple dongle behind an real usb isolator (for ~10€)
ICQUANZX ADUM3160 ADUM3160 USB to USB Isolator Board Protection Insulation 1500V: Amazon.de: Computer & Accessories
www.amazon.de