Voice Alarm
LEN-100
Item number: 1803-XXXXX
The LEN-100 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
- 8 × 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 x 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
8 × 4" drivers with treated cones
sensitivity 1 W @ 4 m in accordance with EN 54-24
84 dB SPL
SPLmax 100 V @ 4 m in accordance with EN 54-24 (trafo S/M/L)
99 dB SPL / 102 dB SPL / -
transformer options, power handling in acc. with EN 54-24 100 V (trafo S/M/L)
80 W / 160 W / -
transformer options, power handling in acc. with EN 54-24 70 V (trafo S/M/L)
39.2 W / 77.8 W / -
impedance 100 % tap (trafo S/L/M)
125 ohm / 63 ohm / -
impedance 50 % tap (trafo S/M/L)
250 ohms / 125 ohms / -
impedance 25 % tap (trafo S/M/L)
500 ohms / 250 ohms / -
2-way design
yes
nominal directivity (h × v) (-6 dB, average @ 1-4 kHz)
130° × 15°
directivity (h × v) (octave band) in acc. with EN-54-24 @ 500 Hz
360° × 55°
directivity (h × v) (octave band) in acc. with EN 54-24 @ 1000 Hz
190° × 25°
directivity (h × v) (octave band) in acc. with EN 54-24 @ 2000 Hz
120° × 15°
directivity (h × v) (octave band) in acc. with EN 54-24 @ 4000 Hz
95° × 8°
Physical features
Optional features
CAAD simulation data
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
