Mixer > Crossover > Amp setup question

Howdy everyone. I have a jam space set up in my garage that me and friends play live music in quite often. Recently I acquired a few new items that I wanted just a bit of clarification on wiring properly. I built a 'budget' rack set up. The rack currently has (all Behringer) Eurorack Pro RX1202FX Mixer, Super-X Pro CC2310 V2 Crossover, and a NX4-6000 amp. I have two JBL 2.5 way dual 15" mains and two JBL 18" subs.

I noticed that the crossover only has one XLR input. The mixer has two XLR outputs. What is the proper way to connect it together? The 2 main speakers and 2 subs have speakon in and out connectors.

The JBL main speakers do have a built in passive crossover that I am not opposed to removing and wiring to speakon connectors getting their supply directly from the amp.

I have included a picture of all three units. Any help would be appreciated. This is just a hobby for me at this point so I've definitely got a lot more to learn. Thanks in advance!

Howdy everyone. I have a jam space set up in my garage that me and friends play live music in quite often. Recently I acquired a few new items that I wanted just a bit of clarification on wiring properly. I built a 'budget' rack set up. The rack currently has (all Behringer) Eurorack Pro RX1202FX Mixer, Super-X Pro CC2310 V2 Crossover, and a NX4-6000 amp. I have two JBL 2.5 way dual 15" mains and two JBL 18" subs.

I noticed that the crossover only has one XLR input. The mixer has two XLR outputs. What is the proper way to connect it together? The 2 main speakers and 2 subs have speakon in and out connectors.

The JBL main speakers do have a built in passive crossover that I am not opposed to removing and wiring to speakon connectors getting their supply directly from the amp.

I have included a picture of all three units. Any help would be appreciated. This is just a hobby for me at this point so I've definitely got a lot more to learn. Thanks in advance!