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Phoenix Engineering speed control

I purchased the Phoenix Engineering speed control for my VPI Classic 3. I purchased  the bigger power supply and the tachometer combination of the speed control.  I notice that I can hear a steady hum coming from the speakers when the speed control us turned. The hum is constant and will not vary if I turn up the volume on the Preamp.  But the hum goes away when I turn the turntable off. The hum return when I turn on the turntable again. I even in unplugged the interconnect from the turntable, but it make no difference.  Does anyone with the Phoenix Engineering speed control experiencing the same issue?
almandog
brf
1,715 posts
 
Where is the hum coming from?  The table itself or through the speakers?  Your post suggests the table.  Try moving the Phoenix products away from the table.  Also, try plugging the Phoenix into another power outlet.
almandog OP
141 posts
 
The hum is clearly coming from the speakers when I turn on the tuentable without any record playing. I plugged out the RCA interconnect from the turntable and turn on the turntable again and the hum is still coming from the speakers. I even move the Phoenix Engineering speed controller around under the VPI Classic 3 turntable, but I could still hear the hum. It is not coming from the turntable because I removed the RCA interconnect.
melm
1,057 posts
 
Call Phoenix.
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