Well, this cable is not the cable for the actual footswitch. I'ts just one i picked up at an electronics store. So i think that the coper wires are ground because they are unshielded and if your touch the grey wire to them the amp shuts off. So grey has to be power. If u tocuh the grey to blue...
Yeah my amp has built in effects. It is a modelling amp so its got tons of um.. but i dont really care for controlling those. The actual footswitch that you can buy for it(the Sanpera I or Sanpera II footswitch) has 4 buttons that control different things and an expression pedal that can control...