The LEN-150 is a passive 100 volt line source speaker certified according to EN 54-24 type B for use in voice alarm systems. Like all products in the Voice Alarm series, it is equipped with a weatherproof, steel-reinforced aluminum housing, making it equally suitable for indoor and outdoor use. The LEN column loudspeakers guarantee excellent speech intelligibility and long ranges even in difficult acoustic environments.
Main features
12 × coated 4" chassis
Uniform directivity
Suppression of unwanted side lobes thanks to Fohhn Source Division Waveguide
Weatherproof without additional protection (degree of protection IP54 according to IEC 529 / EN 60529)
8 × M6 thread for safe installation
Available in different colors (RAL Classic, Pantone, NCS) or with Fohhn Texture Design
In order to ensure performance and operational safety, Fohhn system amplifiers including the correct speaker preset are required.
Colours
Fohhn technologies
Technical data
Electroacoustic features
acoustic design
weatherproof passive line source speaker system, closed, passive 2-way CD crossover and filter, suppression of side lobes by Source Division Waveguides
components
12 × 4" drivers with treated cones
sensitivity 1 W @ 4 m in accordance with EN 54-24
86 dB SPL
SPLmax 100 V @ 4 m in accordance with EN 54-24 (trafo S/M/L)
100 dB SPL / 103 dB SPL / 106 dB SPL
transformer options, power handling in acc. with EN 54-24 100 V (trafo S/M/L)
65 W / 130 W / 260 W
transformer options, power handling in acc. with EN 54-24 70 V (trafo S/M/L)
weight: net weight without optional equipment sensitivity 1 W / SPLmax 100 V @ 4 m in accordance with EN 54-24: measured in the far field of the speaker, count back to 4 m distance impedance 100 / 50 / 25 % tap: measured at a voltage producing 1 W per speaker system
