Thank you for that, I appreciate the response greatly! I did this very thing months ago, the Apollo representative told me to return the interface, which I did, the humming still happens on my current Apollo (I bought another one) and also happens on my M-Audio 2X2, so i’m still pretty confused!
What the noise sounds like:
I have a humming sound which is more or less audible depending on how much I increase the input gain / headphone output - it is also however - perpetually present, as it is visible digitally within software (such as an EQ) - the problem is something to do with...