Install-specific 2-way passive container with a high power 2.5-inch diaphragm compression driver and a superior, weather-resistant 10-inch transducer connected to a cylindrical waveguide with user-adjustable directivity. Premium grade Baltic beech and birch plywood are used to build the enclosed cabinet. An acoustically transparent cloth and a coated steel grill guard the front of the enclosure. The enclosure incorporates inserts for front screens that can be made acoustically transparent and for connecting plates that fit flush. A coherent wavefront horizontal or vertical line source can be created by stringing and integrating this four-point hardware with additional loudspeakers in the same family. N x 30 degree, where N is the number of enclosures in the array, is the line source directivity. driven exclusively and safeguarded by a unique amplification controller through a dedicated preset.