产品
LEN-20
Voice Alarm LEN-20
项目编号: 1806-XXXXX
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。
主要特点
- 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
- 无额外保护的耐候性(防护等级IP54,符合IEC 529 / EN 60529)。
- 新品:
- 可提供不同的颜色(RAL经典色、Pantone色、NCS色)或与Fohhn Texture Design
- 为了确保性能和操作安全,Fohhn 系统放大器,包括正确的扬声器预设。
颜色
Fohhn 技术
技术数据
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
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
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