GoXLR with Beyerdynamic DT 770 Pro & 990 Pro - interference Noise

[JayBe]

Hi Guys,

 

i purchased a GoXLR with a Shure SM7B and some Beyerdynamic DT 770 Pros 250 Ohm.
Problem is: There is quite some interference noise.. like frequential clicking, electrical sounds, etc.
Since im no expert in that area, i thought the GoXLR might be too weak for the 250 Ohm and thats making the noises, so i bought the DT 990 Pros 80 Ohm Version.
At first, everything was good.. but the noises started as well.

So im asking myself, what might be the problem here and if you guys might have some answers.
Is it the Headphones? if yes, what other headphones should i get instead?
Is it the GoXLR? Or is it something completely different?

Thanks in advance!

**EDIT**
I still have the possibility to RMA everything, if you think the hardware might be faulty (especially the GoXLR since its on 2 different, brand new Headphones)

**EDIT 2**
Better description might be a sound like an eletric impulse or frequency..

[Psittac]

This is a common unsolved issue that even the likes of Josh Valour posted an entire video about stating that he had tried everything within his power and he was looking for advice.  And he has all the audio hardware so I doubt it's the hardware.

 

I had this problem and the only thing that would eliminate it was using a balanced connection aka XLR but that was just a bandaid fix for the real problem.  Turned out to be a faulty ground in the RCA splitter I had on my single ended side of the chain and it wasn't just downward from the splitter, it made my entire single ended (RCA) solution experience coil whine.  Once I took the offending piece of equipment out the sound went away.

 

What that means for you?  I'm unaware because it sounds like you just have the dac/amp and headphones so there is nothing to remove from the loop.

 

How do you have the goXLR connected to the PC?  If it's by USB the most likely suspect would be the goXLR but I honestly can't say what the real problem is, it could be many thing's but somewhere is a ground that isn't happy, that's all I know for certain.

 

One potential option is trying an ifi silencer+ But that didn't work for me because the interference was coming from after the USB signal.  You could try some kind of ground loop isolator like this 3.5mm one but I don't know how it works, I was under the impression that it required a separate connection to ground.

 

This entire subject is a mystery that I haven't heard of anyone solving other than myself, though my issue was pretty specific to my system.

[JayBe]

18 minutes ago, Psittac said:

This is a common unsolved issue that even the likes of Josh Valour posted an entire video about stating that he had tried everything within his power and he was looking for advice.  And he has all the audio hardware so I doubt it's the hardware.

 

I had this problem and the only thing that would eliminate it was using a balanced connection aka XLR but that was just a bandaid fix for the real problem.  Turned out to be a faulty ground in the RCA splitter I had on my single ended side of the chain and it wasn't just downward from the splitter, it made my entire single ended (RCA) solution experience coil whine.  Once I took the offending piece of equipment out the sound went away.

 

What that means for you?  I'm unaware because it sounds like you just have the dac/amp and headphones so there is nothing to remove from the loop.

 

How do you have the goXLR connected to the PC?  If it's by USB the most likely suspect would be the goXLR but I honestly can't say what the real problem is, it could be many thing's but somewhere is a ground that isn't happy, that's all I know for certain.

 

One potential option is trying an ifi silencer+ But that didn't work for me because the interference was coming from after the USB signal.  You could try some kind of ground loop isolator like this 3.5mm one but I don't know how it works, I was under the impression that it required a separate connection to ground.

 

This entire subject is a mystery that I haven't heard of anyone solving other than myself, though my issue was pretty specific to my system.

Thanks for the detailed answer.
A Ground Loop Isolator is actually something i had mind and ordered one.
If that doesnt work, maybe I'll try RMAing the GoXLR to see if it fixes it.
And if that doesnt work, then i might have to stick with the ol' Logitech G Pro X again.. even tho it hurts. But listening to those interference noises hurts way more :'D

Thanks again!

[person123456789]

3 hours ago, JayBe said:

Thanks for the detailed answer.
A Ground Loop Isolator is actually something i had mind and ordered one.
If that doesnt work, maybe I'll try RMAing the GoXLR to see if it fixes it.
And if that doesnt work, then i might have to stick with the ol' Logitech G Pro X again.. even tho it hurts. But listening to those interference noises hurts way more :'D

Thanks again!

You might want to return the GoXLR and get something better like the Motu M2

[JayBe]

On 12/3/2022 at 10:12 PM, Psittac said:

This is a common unsolved issue that even the likes of Josh Valour posted an entire video about stating that he had tried everything within his power and he was looking for advice.  And he has all the audio hardware so I doubt it's the hardware.

 

I had this problem and the only thing that would eliminate it was using a balanced connection aka XLR but that was just a bandaid fix for the real problem.  Turned out to be a faulty ground in the RCA splitter I had on my single ended side of the chain and it wasn't just downward from the splitter, it made my entire single ended (RCA) solution experience coil whine.  Once I took the offending piece of equipment out the sound went away.

 

What that means for you?  I'm unaware because it sounds like you just have the dac/amp and headphones so there is nothing to remove from the loop.

 

How do you have the goXLR connected to the PC?  If it's by USB the most likely suspect would be the goXLR but I honestly can't say what the real problem is, it could be many thing's but somewhere is a ground that isn't happy, that's all I know for certain.

 

One potential option is trying an ifi silencer+ But that didn't work for me because the interference was coming from after the USB signal.  You could try some kind of ground loop isolator like this 3.5mm one but I don't know how it works, I was under the impression that it required a separate connection to ground.

 

This entire subject is a mystery that I haven't heard of anyone solving other than myself, though my issue was pretty specific to my system.

Ground Loop Isolator came today and seems to do the trick.

Thank you very much!