Voice Alarm
LEN-220
Item number: 1805-XXXXX
The LEN-220 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
- 18 × 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
Selected projects
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
18 × 4" drivers with treated cones
sensitivity 1 W @ 4 m in accordance with EN 54-24
87 dB SPL
SPLmax 100 V @ 4 m in accordance with EN 54-24 (trafo S/M/L)
102 dB SPL / 105 dB SPL / 108 dB SPL
transformer options, power handling in acc. with EN 54-24 100 V (trafo S/M/L)
77.5 W / 155 W / 310 W
transformer options, power handling in acc. with EN 54-24 70 V (trafo S/M/L)
38 W / 75.4 W / 153.1 W
impedance 100 % tap (trafo S/L/M)
129 ohm / 65 ohm / 32 ohm
impedance 50 % tap (trafo S/M/L)
258 ohm / 129 ohm / 65 ohm
impedance 25 % tap (trafo S/M/L)
516 ohm / 258 ohm / 129 ohm
2-way design
yes
nominal directivity (h × v) (-6 dB, average @ 1-4 kHz)
130° × 14°
directivity (h × v) (octave band) in acc. with EN-54-24 @ 500 Hz
360° × 25°
directivity (h × v) (octave band) in acc. with EN 54-24 @ 1000 Hz
190° × 15°
directivity (h × v) (octave band) in acc. with EN 54-24 @ 2000 Hz
120° × 14°
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
