Let me start by saying that my cable TV wasn't grounded at all. I had to add a grounding block, and check all of the connections to make sure that the fittings were properly installed (which most of them were not). So I was able to substantially reduce the hum to an inaudible level from the listening position, but I can still hear it when I'm close (less than a foot) from the speakers.
I know it's still the cable connection - I unhooked the audio cable from the cable box to the receiver and the hum was gone.
What can I do to completely remove it? Do I have to get an Isolator. If so, does the CISP work well?
Thanks
I know it's still the cable connection - I unhooked the audio cable from the cable box to the receiver and the hum was gone.
What can I do to completely remove it? Do I have to get an Isolator. If so, does the CISP work well?
Thanks