Tonight, I built a 1/4"-to-Speakon cable using some 12 gauge Monster-wanabee cable I picked up for free from the local boom car shop. (They have a big box of short pieces that they can be persuaded to part with.) RTFM. I know it and preach it, but didn't do it this time. So, I assembled the Speakon using +1 and -1 for the signal, and screwed the thing together. However, I was supposed to use +2 and -2... I used the white bushing, which seemed to be the best fit on the 12ga zip cord (it has a very heavy jacket, and is a festive transparent blue). Now I can't get the collar unscrewed. It's locked up tight. How do I disassemble this turkey? Help!