BOSCH LBB 1956/00 ไมค์พูด/ปราศรัย ไมโครโฟน ตั้งโต๊ะ ใช้ในการพูดปราศรัย 6 Zone จากแบรนด์ BOSCH
BOSCH LBB 1956/00
Call station, 6-zone
คุณสมบัติ
- Stylish six‑zone call station for the Plena Voice Alarm System
- Six zone selection keys, all-call key and momentary PTT-key for calls
- Selectable gain, speech filter, limiter, and output level for improved intelligibility
- LED indications for zone selection, fault, and emergency state
- Call station extension provides seven additional zone and zone group keys
สเปค
Power Supply
| Voltage range | 24 VDC supplied by LBB 1990/00(or 18 to 24 VDC or VAC external power supply) |
| Current consumption | <30 mA (plus <15 mA per keypad) |
Performance
| Nominal sensitivity | 85 dB SPL (gain preset 0 dB) |
| Nominal output level | 700 mV |
| Input sound level (max) | 110 dB SPL |
| Gain preset | +6 / 0 / -15 dB |
| Limiter threshold | 2 V |
| Compression ratio limiter | 1:20 |
| Distortion | <0.6% (maximum input) |
| Input noise level (equiv.) | 25 dB SPLA |
| Frequency response | 100 Hz to 16 kHz |
| Speech filter | -3dB at 315 Hz, high-pass, 6 dB/oct |
| Output impedance | 200 ohm |
Selections
| Chimes | Any wave file |
| Priorities | 7 |
| Base dimensions | 40 x 100 x 235 mm(1.57 x 3.97 x 9.25 in) |
| Weight | Approx. 1 kg |
| Mounting | Standalone |
| Color | Charcoal with silver |
| Stem length with mic | 390 mm (15.35 in) |
| Cable length | 5 m (16.4 ft) |
| Operating temperature | -10 ºC to +45 ºC (14 ºF to +113 ºF) |
| Storage and transport temperature | -40 ºC to +70 ºC (-40 ºF to +158 ºF) |
| Relative humidity | <95% |
