Hi everyone. I am having two custom boxes built for the Mach 5 FTW 21 drivers. However my question is to make them with 2 pin or 4 pin speakon connector plates? All of my speakon cables are 2 pin. And I've heard 4 pin speakon cables are rare. However, I've also heard 4 pin speakon connector plates will work with both 2 pin and 4 pin speakon cables. I just want to make sure this is true before I order a set of 4 pin speakon connector plates from parts express.