Bosch LBB 1946/00 Plena Six-Zone Call Station

BOSCH LBB1946/00
The Plena LBB1946/00 six zone Call Station paging microphone is a stylish, high quality call station with a stable metal base design, a flexible microphone stem, and a unidirectional condenser microphone.

The LBB1946/00 can make calls to selected zones (one to six and all-call) in a public address system built around the LBB1925/10 system pre-amplifier. In addition to tabletop use, the special design enables the unit to be neatly flush-mounted.

• Stylish six-zone call station, intended for LBB1925/10 system pre-amplifier
• Unidirectional condenser microphone on flexible stem
• Six zone selection keys, all-call key, and momentary PTT-key for calls
• Selectable gain, speech filter, and limiter for improved intelligibility
• Multiple units can be daisy chained.
• Voltage Range  18 – 24 V (24 V by LBB 1925/00)
• Current Consumption  <30 mA
• Nominal Sensitivity   85 dB SPL (gain preset 0 dB)
• Nominal Output Level   700 mV
• Maximum Input Sound Level   110 dB SPL
• Gain Preset  +6 / 0 / -15 dB
• Limiter Threshold   2 V
• Compression Ratio Limiter   1:20
• Distortion   <0.6% (maximum input)
• Equivalent Input Noise Level   25 dB SPLA
• Frequency Response   100 Hz – 16 kHz
• Speech Filter   -3 dB @ 315Hz, high-pass, 6 dB / oct
• Output Impedance    200 ohm
• Chimes   18 different combinations
• Priorities   2 different priorities

The Bosch LBB 1946/00 Plena Six-Zone Call Station is a versatile and user-friendly device designed for effective communication in public address systems. Here’s a detailed overview of its features, technical specifications, applications, and advantages.

Features

• Six-Zone Control: The station allows users to address up to six different zones independently, providing flexibility in public address announcements.
• User-Friendly Interface: Equipped with a clear and intuitive layout, making it easy for operators to manage announcements and control zones.
• Microphone with PTT Function: Features a high-quality microphone with a Push-to-Talk (PTT) button for clear communication.
• Priority Control: Enables priority settings for certain zones, allowing critical messages to override regular announcements.
• Visual Indicators: Includes LED indicators for status notifications, ensuring users are aware of current operations and active zones.
• Flexible Connectivity: Designed for easy integration with the Bosch Plena public address system and other compatible devices.

Detailed Technical Specifications

• Power Supply: Typically operates with a 24V DC power supply, compatible with Bosch Plena systems.
• Zone Control: Supports six independent zones for tailored announcements and flexibility in communication.
• Microphone Type: Electret condenser microphone for high-quality audio capture.
• Audio Frequency Response: Typically ranges from 100 Hz to 15 kHz, ensuring clear and intelligible sound reproduction.
• Dimensions: Approximately 300 mm (width) x 200 mm (depth) x 100 mm (height), allowing for easy placement on desks or tables.
• Weight: Around 2 kg, making it lightweight and easy to handle.
• Connectivity: Features standard audio connectors, enabling straightforward integration with other system components.

Applications

• Public Address Systems: Ideal for schools, hospitals, airports, train stations, and other public venues where announcements need to be made.
• Commercial Spaces: Suitable for shopping malls, hotels, and conference centers requiring effective communication across multiple zones.
• Event Venues: Useful in auditoriums and large halls for managing announcements and information dissemination.
• Emergency Situations: Can be employed for emergency announcements in public places, ensuring quick communication during critical events.

Advantages

• Versatile Communication: The six-zone capability allows for tailored announcements to specific areas, enhancing message effectiveness.
• Ease of Use: The intuitive interface and clear layout make it simple for users to operate, reducing training time and improving efficiency.
• High-Quality Audio: The electret condenser microphone ensures clear audio capture and transmission, enhancing communication clarity.
• Priority Features: The ability to prioritize messages ensures critical information is communicated promptly, improving response times during emergencies.
• Robust Integration: Designed to seamlessly integrate with the Bosch Plena system and other audio equipment, enhancing overall system functionality.