The unit shall be constructed as a line-array of twelve 4" full-range loudspeakers equipped with moisture resistant diaphragms.
All signal processing functions, necessary to properly drive a directivity controlled line-array with electronical aiming properties, shall be implemented on-board in order to reduce the overhead costs related to external connections. The complete electronics shall be mounted on a chassis which is placed in a separated compartment at the front-side of the enclosure. Electronics shall consist of an audio input module, two input / eight output channel DSP section, eight power amplifiers with protection circuitry and a switched-mode power supply. Power amplifiers one to four shall drive one loudspeaker each, power amplifiers five to eight shall drive two loudspeakers each.