Yes, the Jensen will probably solve it. Did you try the questionable operation of trying the subwoofer with a cheater plug that disconnects the mains ground? It is a good way of diagnosing.Interesting Micro...I have a soft, steady ground loop hum...cannot figure out why. (BTW, it is a loud ground loop hum unless I select the 'Float' option on the Robert Koda K15EX preamp.
What I do know is that disconnecting the IC from the preamp to the Sub solves it immediately. I was hoping that this Jensen Sub-2RR would therefore solve it. Any thoughts on whether that is a fair assumption?
You must get rid of this hum - even if minimal it can affect sound quality seriously!