BOSCH PLENA VOICE ALARM Power amplifier LBB 1938-30 SGCCTV Security Package Public Address Installation Singapore Pa Repair Service

CHOICECYCLE OFFERS THE BEST BOSCH PLENA VOICE ALARM Power amplifier LBB 1938-30 SGCCTV Security Package Public Address Installation Singapore Pa Repair Service

Features:

1. Power Output:
   • Amplification: Provides a maximum output power of 480 watts, ensuring sufficient coverage for large areas.
   • Single Channel: Operates as a single-channel amplifier.
2. Voice Alarm Capabilities:
   • EN 54-16 Certified: Compliant with EN 54-16 standard for voice alarm systems, ensuring reliability in emergency situations.
   • Emergency Priority: Automatically prioritizes emergency messages over regular announcements.
3. Input Flexibility:
   • Mic/Line Inputs: Accepts microphone and line-level audio inputs for versatile connectivity.
   • Phantom Power: Provides phantom power for condenser microphones.
4. Zone Selection:
   • Selectable Zones: Allows for the selection of specific zones or areas for targeted announcements.
   • Individual Volume Control: Permits individual volume adjustment for each zone.
5. Monitoring and Control:
   • Monitoring Outputs: Provides monitoring outputs for connection to external recording devices or for monitoring purposes.
   • Remote Control: Supports remote control via third-party control systems for integration into larger audio systems.
6. Safety and Reliability:
   • Overload Protection: Includes protection mechanisms to prevent damage from overload and short circuits.
   • Temperature Control: Features thermal protection to ensure stable operation under varying conditions.
7. Integration and Expansion:
   • Expansion Capabilities: Allows for additional amplifiers to be connected in parallel for increased power or coverage.
   • Integration: Integrates seamlessly with Bosch Plena Voice Alarm System components and other Bosch sound reinforcement products.
8. Design and Build:
   • Rack Mountable: Designed for rack mounting, suitable for installation in standard 19-inch racks.
   • Robust Construction: Built to withstand continuous operation in demanding environments.

Functions:

1. Public Address System:
   • Provides clear and intelligible voice announcements in various environments such as airports, train stations, stadiums, and shopping malls.
2. Emergency Notification:
   • Ensures immediate and clear delivery of emergency messages during critical situations to enhance safety and evacuation procedures.
3. Background Music Distribution:
   • Supports background music distribution in addition to voice announcements, enhancing user experience in commercial and public spaces.
4. System Management:
   • Facilitates system management with comprehensive controls for audio input levels, zone selection, and monitoring.

Benefits:

1. Enhanced Safety and Security:
   • Ensures reliable and effective communication during emergencies, aiding in swift evacuation and response coordination.
2. Versatility and Flexibility:
   • Accommodates various audio inputs and offers flexible zone control, adapting to different installation requirements and environments.
3. Quality Audio Output:
   • Delivers high-quality sound reinforcement for clear and intelligible announcements, enhancing communication effectiveness.
4. Reliability and Durability:
   • Designed for continuous operation with robust protection features, minimizing downtime and maintenance costs.
5. Compliance and Standards:
   • Meets industry standards for voice alarm systems, ensuring compliance with regulatory requirements and standards.

• 480 W power amplifier in a 3U high 19” housing
• EN 54‑16 certified
• 70 V / 100 V and 8 Ohm outputs
• Dual inputs with priority switching
• 100 V input for slave operation on 100 V speaker line

BOSCH PLENA VOICE ALARM Power amplifier LBB 1938-30 SGCCTV Security Package Public Address Installation Singapore Pa Repair Service

Potential Users:

• Transportation Hubs:
  • Airports: Ensure clear and effective communication for passenger announcements, security alerts, and emergency notifications.
  • Train Stations: Provide audible information for train arrivals/departures, platform changes, and emergency announcements.
  • Bus Terminals: Manage crowd control and safety with clear voice announcements during peak times and emergencies.
• Public Buildings and Institutions:
  • Government Offices: Facilitate clear communication for government announcements, emergency procedures, and public safety alerts.
  • Courthouses: Ensure effective communication of courtroom schedules, procedural announcements, and security alerts.
  • Libraries and Museums: Provide clear audio for visitor guidance, event announcements, and emergency protocols.
• Educational Facilities:
  • Schools and Universities: Support campus-wide communication for class changes, event notifications, emergency drills, and lockdown procedures.
  • Dormitories: Ensure safety with clear communication for fire drills, building evacuations, and security alerts.
• Commercial and Retail Spaces:
  • Shopping Malls: Provide public announcements, emergency notifications, and security alerts to shoppers, tenants, and employees.
  • Supermarkets: Manage customer flow and safety with clear audio announcements for promotions, closures, and emergency situations.
• Healthcare Facilities:
  • Hospitals and Clinics: Enhance patient care and safety with clear communication of hospital announcements, emergency codes, and procedural instructions.
  • Nursing Homes: Ensure resident safety with audible alerts for emergencies and routine notifications.
• Entertainment Venues:
  • Stadiums and Arenas: Manage large crowds with clear announcements for events, security procedures, and emergency evacuations.
  • Theaters and Concert Halls: Enhance audience experience with clear audio for announcements, event details, and safety instructions.
• Industrial and Manufacturing Sites:
  • Factories and Warehouses: Ensure worker safety with clear communication of operational announcements, safety alerts, and emergency procedures.
  • Production Facilities: Manage workflow and safety with audible notifications for equipment status, production changes, and emergency protocols.
• Hospitality Industry:
  • Hotels and Resorts: Provide clear communication for guest services, event announcements, emergency procedures, and security alerts.
  • Conference Centers: Manage events and conferences with clear audio for session announcements, schedule changes, and emergency notifications.
• Residential Complexes and Gated Communities:
  • Apartment Buildings: Enhance resident safety with clear communication of building announcements, security alerts, and emergency procedures.
  • Gated Communities: Manage security and safety with audible notifications for entry protocols, community events, and emergency situations.
• Government and Public Safety Agencies:
  • Police Stations: Support public safety with clear communication of emergency alerts, law enforcement announcements, and community notifications.
  • Fire Stations: Facilitate rapid response with clear audio for fire alarms, emergency dispatches, and safety protocols.

BOSCH PLENA VOICE ALARM Power amplifier LBB 1938-30 SGCCTV Security Package Public Address Installation Singapore Pa Repair Service

Specifications:

General

• Model Number: LBB 1938/30
• Type: Voice Alarm Power Amplifier

Electrical

• Power Output:
  • Rated Output Power: 480 W
• Frequency Response: 50 Hz to 20 kHz (-3 dB)
• Signal-to-Noise Ratio:
  • Line: >90 dB
  • Mic: >85 dB
• Total Harmonic Distortion (THD): <0.5% at rated power, 1 kHz
• Input Sensitivity/Impedance:
  • Line: 1 V/20 kΩ
  • Mic: 1 mV/1 kΩ
• Input Connections:
  • Balanced XLR connector for microphone input
  • RCA connectors for line input
• Output Connections:
  • 100V, 70V, and 8-ohm speaker outputs
• Phantom Power: +18V (switchable)

Mechanical

• Dimensions (H x W x D): 100 x 430 x 370 mm (3.9 x 16.9 x 14.6 inches)
• Weight: Approximately 13.6 kg (30 lbs)
• Mounting: Rack mountable, 2U height

Environmental

• Operating Temperature Range: -10°C to +55°C (14°F to 131°F)
• Storage Temperature Range: -40°C to +70°C (-40°F to 158°F)
• Humidity: 15% to 90%, non-condensing

Features

• EN 54-16 Certified: Ensures compliance with European standards for voice alarm systems.
• Emergency Priority: Overrides normal announcements with emergency messages.
• Zone Selection: Allows for individual zone selection for targeted announcements.
• Volume Control: Individual volume control for each zone.
• Monitoring Outputs: Allows for connection to monitoring equipment.
• Remote Control: Supports remote control via external devices.
• Overload Protection: Protects the amplifier from damage due to overload conditions.
• Thermal Protection: Includes thermal protection to prevent overheating.
• Expansion Capabilities: Allows for connection of additional amplifiers for increased power and coverage.
• LED Indicators: Provides visual feedback for power, signal, and fault conditions.
• Audio Inputs:
  • Balanced mic input with phantom power
  • Line input for background music or other audio sources

Additional Features

• Anti-Feedback Filter: Reduces feedback in PA applications.
• Built-in Compressor/Limiter: Ensures consistent audio levels and prevents distortion.
• Tone Control: Bass and treble controls for audio quality adjustment.
• Alarm Interface: Integrates with external alarm systems for synchronized emergency alerts.

BOSCH PLENA VOICE ALARM Power amplifier LBB 1938-30 SGCCTV Security Package Public Address Installation Singapore Pa Repair Service