The Optima B215 is a compact high power bass enclosure designed to operate over the 40 – 135 Hz pass band. Its primary function is as the bass element of an Optima 8 array system either as the basis of a groundstack, flown above an array or remotely ground stacked. Optima B215 can also be used with Optima 5 and enclosures from the Axis and mFlex ranges.

The cabinet combines two off 15” long excursion cone drivers with neodymium magnet structures loaded into a twin chamber band pass structure. The enclosure is manufactured from 18 mm birch plywood and coated in a heavy duty polyurea finish. The cabinet front has a protective steel grill coated in a water resistant powder coat finish which has an acoustically transparent filter medium bonded to its back surface. The enclosure has a modular dual mode four point fly system that allows connection box to box or box to fly or groundstack frames. Each cabinet has five handles, a clip on transit dolly or the option of castors mounted directly to the rear panel.

The cabinet base has polyethylene runners and the cabinet top panel housings to aid stacking cabinets in vertical columns. The top panel contains an M20 plate to allow cabinets to be pole mounted above it. Three cabinets in a vertical stack have the option of being used in a cardioid mode with the bottom cabinet inverted.