A superior 15-inch transducer that is weather resistant and a high-output 3-inch diaphragm compression driver connected to a cylindrical waveguide with user-adjustable directivity comprise this 2-way passive enclosure. The enclosed cabinet is made of Baltic beech and birch plywood of the highest caliber. A coated steel grill and an acoustically transparent cloth shield the front of the enclosure. Two ergonomic grips and panel corner stops are integrated into the enclosure to protect it. The Flush-fitting hardware enables the creation of a coherent wavefront horizontal or vertical line source by rigging and combining with other loudspeakers in the same family. N x 30 degrees is the line source directivity, where N is the array’s total number of enclosures. driven only by a unique amplified controller that is safeguarded by a dedicated preset.