Produkter

LEN-20

Voice Alarm

LEN-20

Varenummer: 1806-XXXXX

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.

Main features

  • 2 × belagt 4" chassis
  • Jævn dækning og spredning
  • Undertrykkelse af uønskede sidelober takket være Fohhn Source Division Waveguide
  • Vejrbestandig uden yderligere beskyttelse (beskyttelsesgrad IP54 i henhold til IEC 529 / EN 60529)
  • Nyhed: Fleksibel montering takket være T-slottet på bagsiden
  • Fås i forskellige farver (RAL Classic, Pantone, NCS) eller med Fohhn Texture Design
  • For at sikre ydeevne og driftssikkerhed kræves Fohhn systemforstærkere inklusive den korrekte højttalerindstilling.

Farver

Fohhn teknologier

Tekniske data

Electroacoustic features

acoustic design
weatherproof passive line source speaker system, closed, suppression of side lobes by Source Division Waveguides
components
2 × 4" drivers with treated cones
sensitivity 1 W @ 4 m in accordance with EN 54-24
79 dB SPL
SPLmax 100 V @ 4 m in accordance with EN 54-24 (trafo S/M/L)
92 dB SPL
2-way design
no
transformer options, power handling in acc. with EN 54-24 100 V (trafo S/M/L)
50 W / - / -
transformer options, power handling in acc. with EN 54-24 70 V (trafo S/M/L)
24.5 W / - / -
impedance 100 % tap (trafo S/L/M)
200 ohm / - / -
impedance 50 % tap (trafo S/M/L)
400 ohm / - / -
impedance 25 % tap (trafo S/M/L)
800 ohm / - / -
nominal directivity (h × v) (-6 dB, average @ 1-4 kHz)
130° × 60°
directivity (h × v) (octave band) in acc. with EN-54-24 @ 500 Hz
360° × 360°
directivity (h × v) (octave band) in acc. with EN 54-24 @ 1000 Hz
190° × 120°
directivity (h × v) (octave band) in acc. with EN 54-24 @ 2000 Hz
120° × 60°
directivity (h × v) (octave band) in acc. with EN 54-24 @ 4000 Hz
95° × 30°

Physical features

enclosure
weatherproof aluminium housing, powder coated, steel bracings
connectors
terminal connectors capable of receiving up to 4 mm², two per pin, terminal cover with dual cable gland for up to 10 mm cable diameter
dimensions (w × h × d)
approx. 133 × 230 × 128 mm
weight (trafo S/M/L)
approx. 3 kg / - / -
standard colours
black (RAL 9005) or white (RAL 9016), powder-coated
certificates
EN 54-24 type B
EN 54-24
1
front design
ball impact resistant grille, galvanized and powder coated in housing colour backed by acoustically transparent foam
mounting points
continuous T-slot at rear

Optional features

optional colours
RAL Classic / NCS / Pantone on request, Fohhn Texture Design
optional connectors
ceramic terminals capable of receiving up to 2.5 mm²
optional weather protection
as standard (protection class IP54, in accordance with IEC 529 / EN 90529)

CAAD simulation data

simulation data
EASE, CLF, Ulysses, Fohhn Designer

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

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