Reddit reviews PAC SNI-135 Ground Loop Isolator

What’s your mic setup?

Depending on where the noise is coming from, you can use a ground loop noise isolator to reduce or cut out background noise from components.

I can personally vouch for this working in a duo-stream setup with a stand-alone streaming PC. We have one on each of the mic inputs (ATH-ADG1X headsets) iirc - between each headset and its respective gaming PC, and additionally each headset split to an input on the streaming PC. Overall the setup is kind of a mess, and eventually we’d like to get a good mixer setup to make things simpler, but this sounds decent and has worked better for our sort of unique use-case scenario than anything else thus far.

you might want to open up the mtrack2 and see if there's a short against the enclosure or ground disconnect.

Some people will suggest a cheater plug to defeat ground loop noise, but IMO thats a bad idea because they are dangerous.

First make sure there's nothing near the Mtrack that can generate noise (where's your cellphone?)

Next try changing the power socket or even the power cord (I dont know if the mtrack2 has a detachable cord)

if you keep getting noise, maybe it's time to move on from the mtrack2. Or if you can't, consider getting one of these, although in general it's always a bad idea to throw good money after bad.

is there a mic/line option on your interface? maybe it's set to the wrong one... how much input gain do you have dialed on the interface? perhaps it's up too high. those are my thoughts.. i also use a cheap noise isolator from amazon, and it's working perfect over here.