Vented Lo Max subwoofer with premium 13-ply Baltic birch construction, durable acrylic polyurethane finish and 16-gauge, powder-coated perforated metal grille, it is built to endure years of heavy use. Cabinet is well braced and stiff and large vent area and long path allow for huge volumes of air to cool enclosure with low resistance. Input connections are made via two 4-pin Neutrik jacks in parallel or an 8-pin Neutrik with 4-pin Neutrik thru jack for bi-amping. An optional mounting pole can support two-box array of Versarray 112 enclosures.