Ask your question over at the VPI forum, maybe Harry or Mat will chime in.
http://vpiindustries.com/forum/index.php
http://vpiindustries.com/forum/index.php
VPI Classic 1. Defective or design flaw
Ask your question over at the VPI forum, maybe Harry or Mat will chime in. http://vpiindustries.com/forum/index.php |
I would try using a "cheater" adapter (easily bought at Home Depot for less than a dollar, which would allow you to turn the plug 180 degrees and/or even eliminating the ground lug. You will find the offending circuit....just patiently experiment. I don't know the Phoenix stuff intimately....make sure you can eliminate the ground, or plug reversal without damage. When you find the problem, if a ground has to be eliminated, I would remove the wall plug, and disconnect the ground wire...those cheaters can make the sound grainy, but you don't care...you're just trying to find the ground loop. I would mark the wall outlet with a small piece of paper saying the ground was altered. |
Trytone.....I suggested the cheater to find where the ground loupe is. Try it on the turntable first (I doubt it will help there)..... also try it on your other black boxes until you find the culprit. In my system (Ayre amp, preamp, Universal silver disc player, Vandersteen speakers (which plug into the wall), and dedicated headphone amp)...if the headphone amp is not plugged in, I get a hum (with the 2nd preamp output connected).... You just have to wade through the system ....the joys of audiophiledom. Plug the 3 way plug you are testing into the "cheater" which allows you to reverse the plug (turn it 180 degrees) and/or eliminate the 3rd ground wire (the rounded metal spade on the plug...as opposed to the 2 flat ones (one wider than the other). |