The bad news, it's hums like a mother-effer and they don't offer returns

Definitely slight humming coming from the unit and the header for grounding the turntable cables broke inside the box

hum, hum, hum hum.

All I could hear is a bad hum

There is no ground hum

all it did was create a VERY nasty hum in my system.

I THINK it works fine, although I haven't gotten around to grounding it yet (not sure what to ground it to), so there is a pretty loud hum

serious ground hum problem.... have tried every type of

Had to return, loud hum

Works no hum on a very long cable run

When connected between phonograph and powered speakers it produces a terrible hum that makes listening impossible.

, I have many turntables and some have a nasty hum.

Very bad hum and distortion making the audio totally unexceptable