Anyone know Feastrex pin connector size?

I have a DIY open baffle speaker pair that I purchased used that use the Feastrex NF5EX field coil driver for the upper part of the audio band. The audio signal is applied to the drivers via a pin connector. I'd like to try a different configuration that requires a longer speaker cable, which I would like to have made w the pin connectors. Anyone know what diameter they are? My eyes and metric ruler say 2 mm but I cannot find any info on Feastrex' rather minimal web site to confirm that.

TIA