Connecting Plate For SLA210+SUBA18-SLA210 The CPSLP210 is a pro-grade connect plate for high-precision audio. It acts as the main link for your professional sound system. We designed it to connect SLP210 speakers to SUBA18-SLA210 subwoofers. This plate ensures your rig stays stable and safe. It is a vital tool for touring bands and fixed sound setups in big clubs or theaters. Versatile Setup and Pro Safety You can use this plate in two main ways. In "Flown Mode," it lets you hang speakers safely