Unfortenatelly, Im living outside of US, and I have option to buy just from one company... so I hope they will be good quality...

 

And where do you live?

 

Europe, Slovakia :D, Im sure that u dont know :D

 

Can you buy from Thomann?

https://www.thomann.de/gb/cae_audiokabel_30.htm

 

I would like but, delivery will cost me a lot, also we got problems with deliveries because of covid, so i think the best solutions is order them in my country... i bought these: https://www.muziker.sk/rockboard-flat-trs-cable-3-m-black

 

I had same problem once with similar setup, Focusrite 212 gen1 solo into Yamaha HS8. Balanced cables did help. But then I got the HS8 Sub and it came back so I had to get a Behringer hum destroyer HD400. And that solved the problem.

 

If all else fails, this'll do the trick...

https://www.amazon.co.uk/Behringer-MICROHD-Hum-Destroyer-HD400/dp/B000KUD2G4

EDIT: @Jim Von Gucci pipped me to the post with an identical suggestion. I had to resort to this on one of my PCs too...

 

did you plug them into a new outlet when you upgrade if not then where did you plug the new computer into change that Im speaking electrical try a different plug on a different wall sounds like 60 cycle hummmm if you had no trouble before

 

There are people who use this type of device to remove USB Ground Loop:
https://www.amazon.com/SMAKN-Isolator-Digital-Isolation-Industrial/dp/B00XXPO4UG
Who knows, maybe it could solve the problem (I've never tried it)

Good luck

 

an isolator most likely won't work because the focusrite gets power from the usb bus

 

Yes, correct

My troubleshooting would start like this:
Connect focusrite to a laptop (or smartphone or ipad): if the buzz persists then it is a soundcard / cables problem

 

Actually couldn't it be just powered via 5v USB source (like a phone charger) and then check for noise?
Or would the ICs / circuits not be activated to send signal unless software is running?
If that works, could you also run other audio into it and play that through the speakers to check overall, too?
Interesting ... I have a Presonus Audiobox i will try...

Yes that does work with my AudioBox. Powered by phone charger (not connected to computer).
Turned up the inputs with nothing going in and i can hear a bit of hiss at full volume.
Turned the volume down and plugged my phone audio into the input jacks (via a 1/8" to RCA cord with 1/4" adapters on the RCA jacks). Turned up the volume and it works great.

 

Last edited: Jan 18, 2021

This may seem minor but it may help. Make sure your phone is not near your monitor speakers or PC monitor.

 

You must have the right cables so start there. Cables make a HUGE difference.

Sounds like a ground problem

Did you try unhooking the interface and plugging headphones into the audio card.. listen to a mp3 or a youtube vid and at least rule out that the noise is not coming from the computer.

 

Last edited: Jan 18, 2021

Hope that cables fix the situation...

 

Ok i will keep it mind...

 

Tried these before but didnt helped...

 

Thanks for help I will look at it...

 

Yeah, with soundcard isnt problem, cause when i connect it with my previous ntb, everything works good. Unfortenatelly i dont have cables to connect phone with my speakers or sound card...

 

Tried it, still happening...