Voice Alarm

LEN-20

Farver

Main features

Main features

LEN-20 er en passiv 100 volt-højttaler, der er certificeret i henhold til EN 54-24 Type B til brug i talalarmsystemer. Som alle produkter i Voice Alarm-serien er den udstyret med et vejrbestandigt, stålforstærket aluminiumshus, hvilket gør den lige velegnet til indendørs og udendørs brug. LEN-højttalerne garanterer fremragende taleforståelighed og lang rækkevidde, selv i vanskelige akustiske omgivelser.

  • 2 × belagt 4"-chassis
  • Jævn dækning og spredning
  • Undertrykkelse af uønskede sidelober takket være Fohhn Source Division Waveguide
  • Vejrbestandig uden yderligere beskyttelse (beskyttelsesgrad IP65 i henhold til IEC 529 / EN 60529)
  • Det er nyt: Fleksibel montering takket være T-sporet på bagsiden
  • Fås i forskellige farver (RAL Classic, Pantone, NCS) eller med Fohhn Texture Design
  • For at sikre optimal ydeevne og driftssikkerhed er det nødvendigt med Fohhn systemforstærkere med den korrekte højttalerindstilling.

Varenummer: 1806-XXXXX

Downloads

Tekniske data

Tekniske data
Technical data

Physical features

enclosure
aluminum
dimensions (w × h × d)
133 mm × 233 mm × 128 mm
weight with transformer S
3 kg
front design
front grille with acoustically transparent 3D mesh fabric behind it
standard colors
black (RAL 9005), white (RAL 9016)
coating
powder coated
connectors
2 × 2-pin terminal block (for flexible and rigid conductors up to 3.3 mm²)
mounting points
continuous T-slot at rear
certificates
EN 54-24 type B

Electroacoustic features

acoustic design
passive line source speaker system, closed, suppression of side lobes by Source Division Waveguides
components
2 × 4" drivers
transformer options, power rating acc. to EN 54-24, 100 V (transformer S)
50 W
impedance tap at 100% with transformer S
200 Ω
impedance tap at 50% with transformer S
400 Ω
impedance tap at 25% with transformer S
800 Ω
sensitivity acc. to EN 54-24
79 dB
SPLmax acc. to EN 54-24 (transformer S)
92 dB
nominal dispersion (h × v)
130 ° × 60 °
directivity (h × v) (octave band) acc. to EN 54-24 @ 500 Hz
360 ° × 360 °
directivity (h × v) (octave band) acc. to EN 54-24 @ 1000 Hz
190 ° × 120 °
directivity (h × v) (octave band) acc. to EN 54-24 @ 2000 Hz
120 ° × 60 °
directivity (h × v) (octave band) acc. to EN 54-24 @ 4000 Hz
95 ° × 30 °

Environmental conditions

IP code
IP65
Fohhn Weather Rating 1
standard
Fohhn Weather Rating 2
standard
operating temperature, max.
40 °C

Optional features

special colors
Pantone, Fohhn Texture Design, RAL Classic, NCS, RAL Design, other color systems on request

CAAD simulation data

simulation data
EASE, CLF, ulysses, Fohhn Designer

weight: net weight without optional equipment
IP code: according to IEC 60529/ EN 60529
impedance 100 / 50 / 25 % tap: measured at a voltage producing 1 W per loudspeaker system
sensitivity in acc. to EN 54-24: at 1 W/ 100 V, maximum sound pressure level (SPLmax), measured in the far field of the loudspeaker, standardized to a distance of 4 m
100 V, measured in the far field of the loudspeaker, standardized to a distance of 4 m
nominal dispersion: −6 dB compared to the main dispersion axis, averaged 1 – 4 k

Fohhn teknologier

Applikationer / use cases