I was wondering if anyone knew the wiring scheme of speakon connectors? I need a couple of cables to connect from the back of my power amp to my cabs. I've only found one website that carries them and I'm having a hard time parting with the $65 they want for two 3-footers. The local GC doesn't carry speakon cables but they do have the connectors, so I think I could just build a couple myself if I knew how to wire them. I read (or misread) somewhere that they have 4 wires? I'm trying figger out how that would work. Anyone have any info on these suckers?