will grado hum?


in the past I have had problems with grados and "s" shaped arms such as MMT. has anyone used grados ( $500. and up ) with the ALPHASON HS 100? other equipment includes UNISON 845 SE, JOULE 100 pre amp, and OPS phono stage, SOTA STAR SAPHIRE w/ hold down and VR4s
thanks
potsey
I've seen this with Regas, but we found that we were able to fix some grounding problems on the Rega and then there was no hum at all.
Atmasphere,

do you recall what exactly you did to the Regas to cure the grounding issue?
Piedpiper, sure. I ran a wire from the case of the motor to the bearing of the platter, and from there to the base of the arm, so that they were all grounded. I had to scrap some of the plating off of the motor case in order to be able to solder to it.
The other way to fight the excessive hum would be to glue a sheet of Mu-metal to the mat or platter.