SUT Hum


I bought a Hashimoto HM3 SUT.
It has a ground connection, but when the ground cable from the turntable is connected to the SUT, there is an audible hum. However, when the ground cable is connected to the ground connection of the preamp, there is no hum.

Is it a common problem? I'm OK as long as the SUT does not generate hums. But I wonder whether it is due to faults in the SUT.
128x128ihcho

Showing 1 response by whatthe

Don't get this thread. Ground connected to preamp, NO hum. No problem.
I'm just say'n ✌️