Soldered all the wire connections so I don't believe that's the issue. The arrow in the pic indicates the movement that occurs at high volume.. the copper ring on the inside seems to be coming into contact with something but I can't see what it is/get to it. At lower volumes that copper ring doesn't move so violently and therefore there's no screech? The wires appear to touch at high volume as well but I wrapped them and the screech continued
[image|1985184]
[image|1985183]