I hope I'm posting to the right group. There seems to be a lot of
traffic here, so hopefully, someone can help.

I am experiencing trouble with my HTR-5450 receiver, specifically the
subwoofer. There is a loud buzz in all of the speakers when anything
but my DVD player (DV-C6280) is connected to the unit. This occurs
only while the subwoofer is connected using a 'RCA'(analog) cable. If
the subwoofer is connected using the speaker terminals, the buzzing
sould does not occur, but the sub output is not as clear. I have
tried several brands of cable to alleviate the problem with no
success. Can you provide me with any additional ideas to try?

Thank you,

Joe