Behringer NX3000 Bridged Questions?

Hi,

I'm curious about bridging my NX3000. I never used speakon connections prior to this amplifier. I was reading about 2 pole vs 4 pole for this and while the instructions are not very clear on the amplifier's paperwork, nor on the amplifier itself (at least to me), I found information about when its on bridge mode that it will output from channel A and that it needs a 4 pole speakon connector for that. My DIY sub it powers has two banana terminals. I currently use one channel from the amp and use a speaker on to banana adapter and then just plug typical speaker wire from that to my sub into the terminals. Is there a commercial or off the shelf solution for a 4 pole speakon that I can plug into channel A and then adapt to banana terminals? Or do I have to wire something like this myself?

Very best,