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Buzzing source

Just got a new mmf-5 turntable. It is being run through a Parasound phono pre to a Audio Refinement int. amp. The table's ground is connected to the ground connector on the back of the Parasound. when I remove the ground wire, the buzzing gets much louder. All grounded plugs in the system are fitted with "cheater" plugs, then plugged into a power strip which is grounded at the wall outlet. Other than trial and error, does anyone know if there is a main culprit in these grounding problems? Should I be trying to ground the table somewhere else? The buzzing is only occurring when the phono input is selected.
rgc
rcprince
2,830 posts
 
Another possibility (not knowing if your buzz is a hum) is to try moving the phono stage away from the integrated's transformer, which might be contributing to the noise you hear.
ksales
228 posts
 
Is there a cable box nearby? You may be getting a groud loop issue in there somewhere.
lak's avatar
lak
3,516 posts
 
When your TT, amp/preamp etc are all on what effect does it have if you touch the ground wire (connection)going to the stylus with the tip of a tooth pick or pencil or some other small object? Does it improve or stop the buzzing?
rgc OP
20 posts
 
When I upgraded my receiver to the integrated amp, I had a ground loop problem. Since then, I've had to put cheater plugs on most 3 prong plugs. It's almost as though it's a different sound though. The ground loop problem before was more of a hum, whereas this is more of a buzz. The buzz does not change intensity when I touch the groung post. The buzz gets much louder when I take the ground wire off. As a test, I went outside and disconnected the cable where it enters the house, no change..
blrad22
5 posts
 
This might be kind of funny, but it happen to me. Is there a lamp in the room or even worse, a dimmer switch?

-BLR
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