I have a jvc rx-d402b and use fluance speakers (5.1 - 3 front, two back & subwoofer). My problem is that my center speaker is echoing. This is true even when I turn off the other speakers. Its like sitting in a tunnel. I have messed with the settings but I can't seem to get it stopped. This is a recent development (somebody has been pushing buttons), and I obviously am clueless.
Any thought are gratefully accepted - thank you............