Marantz 10b hum

Any ideas on how to cure a slight hum in a Marantz 10b? The only solution that I can think of is to replace the power supply capacitors.

usna200812-21-2010 10:02pm

onemug Details Discussions Posts This discussion Message User 784 posts 03-12-2011 at 05:04pm Copy Comment URL Report Comment Edit Delete Have you tried reversing the 10b's a/c plug orientation in the wall? And to clarify: Do you hear the hum from the Marantz itself or the speakers?