Cmple - Speaker Wall Plate - 7.1 Surround Sound Distribution - 3-Gang Allocates 8 pair of the binding posts with 3 pair for the left side, 3 pair for the right side, and 2 pair for the center. The subwoofer connection is an RCA connection on the front and an RCA connector on the back. Includes 3 gang white plate with 8 pair binding posts Includes 2 RCA jacks for subwoofers. Installs in a NEMA 3gang box.