I have noticed (quite some time ago) that my speakers eminate a 'hum' from the main drivers. I did initially think that the fault lay with the speakers, or that it was just inherent in this model, however after trying out a few things, it appears that the hum is only evident when there is no connection from the preamp (audio interface). The UA-25 is USB powered and so needs the computer to be on, but when it is switched on, the hum almost disappears completely.
I am now using a dedicated ring circuit for my AV, but the problem was evident prior to this being installed.
So what is going on here? Is this a ground loop problem? If so, what is the solution?
I am now using a dedicated ring circuit for my AV, but the problem was evident prior to this being installed.
So what is going on here? Is this a ground loop problem? If so, what is the solution?