It's probably a ground loop. Do the table and/or the Phoenix have a ground wire? Try a cheater plug. Experiment with whatever ground wires there are between them and share the results with Phoenix when you call them. Cheers,
Spencer
Spencer
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?