Voice Alarm
LEN-20
of 2
主要特点
主要特点
LEN-20 是一款无源100伏的扬声器,根据EN 54-24 B型认证,可用于语音报警系统。与Voice Alarm 系列的所有产品一样,它配备了一个防风雨的钢筋铝外壳,使其同样适用于室内和室外使用。LEN扬声器即使在困难的声学环境中也能保证出色的语音清晰度和高范围。
- 2 × 防水涂层4 "全频单元
- 均匀的指向性
- 抑制不需要的旁瓣得益于Fohhn Source Division Waveguide
- 安装“电缆接头套件”(随附)后,防护等级为IP65,符合EN/IEC 60529标准
- 新品:
- 可提供不同的颜色(RAL经典色、Pantone色、NCS色)或与Fohhn Texture Design
- 为确保最佳性能和运行可靠性,必须使用Fohhn 系统功放,并选择正确的扬声器预设。
项目编号: 1806-XXXXX
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技术数据
技术数据
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
Fohhn Weather Rating 3
custom-build
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 EN/IEC 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
IP code: according to EN/IEC 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
应用/用例
部分项目

