Subcompact 2 x 12” Cardioid-Arrayable Subwoofer Loudspeaker with 2x JBL Differential Drive® dual voice coil and dual magnetic gap 2263H-1 12” long-excursion low frequency drivers. Vented-Bandpass Enclosure Topology with Rigid Internal Bracing. Pole Mount. Designed for Reverse-Arrayable Orientation to create Gradient Cardioid Subwoofer Arrays. Patented Integrated Suspension Hardware. Perforated Steel Grilles with Foam Backing, Four Handles. NL8 and NL4 Connectors with Front Auxiliary Connector. Combine in Arrays with VT4886.