Connecting Plate For SLP28+SUBA18-SLP28 The CPSLP28 is a pro-grade connect plate for high-precision audio. It serves as the main link for your sound system. We designed it to connect SLP28 speakers to SUBA18-SLP28 subwoofers. This plate ensures your system stays stable and safe. It is a vital tool for touring bands and fixed sound setups in 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 beneath your sub