PS Audio Duet cause buzz in my amp

Power Components
1

Hi,

Curious, Why my Duet induces a loud buzz, can hear form 15 feet away. But when I plug my amp into a different protector like my isobar, the buzz is gone.

Thanks,

Aaron

2

It induces a loud buzz in your equipment or speakers? It sounds like perhaps a ground loop.

3

It’s a buzz from the amp enclosure. Maybe the transformer?