Bosch Plena LBB 1956/00 Six-Zone Voice Alarm Call Station Paging Microphone

The Bosch Plena LBB 1956/00 is a stylishly constructed Six-Zone Call Station Paging Microphone, consisting of a stable metal base, flexible microphone stem and Unidirectional Condenser Microphone.

The LBB 1956/00 is more than capable of making calls to selected zones (one to six and all-call) in a Public Address System, built with the Plena Voice Alarm System. This product also features a particularly sleek design, which enables the unit to be neatly flush-mounted to any given surface.

Product Features:

  • Allows connection of expansion keypad LBB1957
  • Stylish six-zone call station for the Plena Voice Alarm System
  • LED indications for zone selection, fault, and emergency state
  • Six zone selection keys, all-call key and momentary PTT-key for calls
  • Selectable Gain, Speech filter, Limiter and Output Level for improved intelligibility


  • Weight: 1 kg
  • Compression Ratio Limiter: 1:20
  • Frequency Response: 100 Hz – 16 kHz
  • Nominal Sensitivity: 85 dB SPL (Gain Preset: 0 dB)
  • Voltage Range: 24V DC – supplied by LBB 1990/00
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