CoRAY4

The system is to consist of a passively separated 2-way loudspeaker, which is driven and protected by a special controller output stage. The loudspeaker shall contain four 5" loudspeakers for the low frequency range in a bass reflex tuned cabinet. The used loudspeakers should be impregnated weatherproof. In the high-frequency range, two pressure chamber drivers with 1.75 inch ring diaphragms are to operate. The pressure chamber drivers used should each be coupled to a 4" planar wave waveformer. The continuous load capacity of the system shall be 700 Watt RMS. The loudspeaker should have a nominal impedance of 4 Ohm. The usable system bandwidth should be 80 Hertz to 20,000 Hertz (-3 dB). The system shall be usable with either a horizontal dispersion angle of symmetric 120°, 60° or asymmetric 90°. When used alone, the loudspeaker should have a vertical dispersion angle of asymmetric 12° (+1°/-11°). In combination with other loudspeakers of the same type in the headstack, the vertical dispersion angle should be dependent on the number of loudspeakers used. The maximum peak sound pressure level should be 131 dB, measured with pink noise at a distance of 1 m, under half-space conditions and with a crest factor of 6. The loudspeaker cabinet should be made of birch plywood and vesi- cient with a weather- and moisture-resistant polyurea coating (PU). The front of the loudspeaker should be equipped with a ball-proof protective grille, which is backed with acoustic neutra- lem foam. Its physical dimensions should be 152 mm in width, 758 mm in height and 214 mm in depth. The loudspeaker shall weigh 15.7 kg. The loudspeaker should have an integrated quick connector system with which special accessories can be mounted. The loudspeaker should be able to be mounted to a stacked or suspended line source by means of accessories with loudspeakers of the same or different type. The speaker box should be connected via two 4-pole SpeakON sockets. The manufacturer's warranty shall be 5 years.