iFi GND Defender | Noise Reducer

It actually works!

Had a slight hum introduced into my system when I replaced solid state phono pre with all-tube unit. Not a huge believer in expensive power conditioners/regenerators, so I tried a few different power outlet combinations, with some success. But most significant improvement came from the iFi ground defender. My all-tube system, with efficient horn speakers, is now very quiet. Highly recommended.

Works as advertised, ground loop hum from PC to Home Theater is completely gone