Just following up here. So I want to bridge my NX3000d for 4ohm. So at the amp end I wire the speakon as red cable to +1 and black to +2? Leave the other side as banana plugs into the subwoofer.For more "exotic" wiring schemes, or when bridging (the amp end needs to be wired +1(pos)/+2(neg) in this case, and you don't have +2 with 2-pole SpeakOns).
No need to overthink it. The price difference is negligible and you have more options.