The system shall consist of a passively separated 1-way loudspeaker box, 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. The continuous load capacity of the system should be 700 watts RMS. The loudspeaker should have a nominal impedance of 4 Ohm. The usable system bandwidth should be 80 Hertz to 1,300 Hertz (-3 dB). The system is intended to be used in combination with similarly constructed loudspeakers with additional high-frequency units, as well as with loudspeakers of the same type in the headstack. 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 multiplex and sealed 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 acoustically neutral foam. Its physical dimensions should be 152 mm in width, 758 mm in height and 214 mm in depth. The weight of the loudspeaker should be 13.2 kg. The loudspeaker should have an integrated quick connector system with which special accessories can be mounted. It shall be possible to mount the loudspeaker to a stacked or suspended line source by means of accessories with loudspeakers of the same or different type. The loudspeaker should be connected via two 4-pole SpeakON sockets. The manufacturer's warranty shall be 5 years. 
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CoRAY4L is an arrayable low-mid extension for the CoRAY4 column line system for touring and installation applications. It has a transmission range of 80Hz - 1,300Hz (-6dB), an AES power of 700 W and can reach a peak level of 131 dB (6dB Crest). The system is operated, controlled and monitored by an external CODA AUDIO LINUS system amplifier.