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Hovland HP100 hum?

I have a Hovland pre and VTL ST150 amp. Connected to the Alto Utopia Be speakers through synergistic research cables all around. The hum from the Hovland is too much. I can hear it from my listening position. I am using cheater power plugs, so I dont think it is the earth connection.

Any advice or ideas? I think I read about the Hovland hum in some of the reviews.

Thanks.--Michael
mihalis
holzhauer
201 posts
 
Does a tv cable connect to your system somewhere? That could be a ground path that is not stopped by the cheater plugs.
kooby
1 posts
 
I have an HP-100 that had a wicked hum, and I was first advised to float the grounds. It worked wonders - hum disappeared whether I had the blue light on or off. The second suggestion I was given was to check interconnects.
mihalis OP
61 posts
 
Thank you all for the advice so far. I have unfortunately done the following:
-changed interconnects--> no effect
-turned on/off the light --> no effect
-disconnected all TV/cable related cables from anything related

And the damn thing is not going away. I just printed some literature on this and will try some more. Maybe my sourround amp that is racked between the two (VTL/Hovland) is causing some magnetic problems.

Thank you for the feedback though. Greatly appreciated.
Michael
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