Tender Specification: LX-220 Highly resilient 4-way line source speaker system in aluminum enclosure Highly resilient, passive 4-way line source speaker system in aluminum enclosure, equipped with 18 high quality coated 4” drivers and three 1” drivers on a special horn loaded Waveguide. By using neodym chassis and an aluminum enclosure the speaker only weighs 16 kgs. Perfectly suited for dynamic music transmissions in rooms with demanding acoustics, long reverberation times and challenging architecture. The speaker is temporary able to work under 3600 W and generates acoustic pressure of maximal 131 dB. In a frequency range of 65 Hz to 20 kHz, the speaker has a precise and minimal-phase dispersion of 130° x 15° (h x v). Weatherproof, light aluminum enclosure with rounded sides, black or white powder coating. Optional available in all RAL Classic colours. For the protection of the speaker chassis and the electronics, the enclosure is equipped with a ball impact resistant, extremely sound-permeable front grille, which is made of powder-coated steel and equipped with a moisture- and dust repellent acoustic foam. The premium and complex crossover with an integrated electronic tweeter protection guarantees highest quality and operational reliability. 12 pieces M6 thread applications in ground, upper and rear side are integrated to the admission of system brackets. The loudspeaker system is optionally available with an integrated 100V-transformer up to 60 W. Connections: screw- and pluggable 8-pin Phoenix terminal strip. All contacts exist twice, to connect very easy and safe to the next speaker. Specific brackets to assemble the system on ceilings, walls, traverses and stands are optionally available. Simulation data CAAD for EASE are available. Electro-acoustical features Acoustic design: passive hybrid line source speaker system, 4-way, weather resistant Components: 18x 4" long excursion with treated cones, 3x 1” compression driver on Fohhn®-Waveguide with self-resetting IPC[*]-HF protection, fully neodymium power rating (nominal) [1]: 900 W power rating (program) [2]: 1800 W Power rating (peak) [3]: 3600 W Sensitivity [4]: 96 dB maximum SPL [3]: 131 dB Frequency range [5]: 65 Hz – 20 kHz Nominal dispersion (h x v) [6]: 130° x 15° nominal impedance: 4 ohms features enclosure: Weatherproof aluminum housing protection grille: steel, ball impact resistant, powder coated rigging points: 12 x M6 threads Connections: 8-pin Phoenix terminal standard colours: black or white powder coated front design: Steel grille in enclosure colour, backed by acoustically transparent foam dimensions (W x H x D): approx. 130 x 2200 x 120 mm weight [7]: approx. 16 kgs optional features Integrated 100V transformer: 60 / 30 / 15 W optional colours [8]: all RAL Classic colours, Fohhn Texture Design weatherproof connection panel CAAD Simulation data: EASE Manufactured by Fohhn Audio AG Type: LX-220 [1] according to IEC-60268-5 long term [2] according to IEC-60268-5 short term [3] Peak, 20 ms with bandpass filtered pink noise signal according to IEC 60268-2 at one octave above the lower limit of the frequency range. [4] 2,83 V at 8 ohms (2 V at 4 ohms, 4 V at 16 ohms) at a distance of 1 meter under anechoic fullspace conditions [5] -10 dB under anechoic halfspace-conditions [6] horizontal x vertical at -6 dB, averaged 1-4 kHz [7] net weight without optional equipment (*) Intelligent Protection Circuit. Voltage-controlled semiconductor circuit protecting the HF-driver against overload highly effective and with very short attack time. [8] other RAL colours or NCS available on request