Bondman,
The hum I'm getting is with the TV on or off. It only went away when I disconnected the audio cables from the TV to the preamp. I ordered a TII 220 Ground Loop Isolator for the cable box connection and hope this fixes the issue.
The hum I'm getting is with the TV on or off. It only went away when I disconnected the audio cables from the TV to the preamp. I ordered a TII 220 Ground Loop Isolator for the cable box connection and hope this fixes the issue.