• Aspiration
  Detection
  • Detectors
  • 8100 Series
  • Other
  • Accessories
  • Piping
  • Resources
  • CAD Drawings
  • FAAST Resource Page
• Conventional
  Detection
  • Detectors
  • 100 Series
  • 400 Series
  • Beam Detectors
  • Carbon Monoxide
  • Heat Detectors
  • i³ Series
  • i⁴ Series
  • Other
  • Accessories
  • Bases
  • Multi-Voltage Relays
  • Tools
  • 2-Wire Compatibility
  • Resources
  • BEAM Resource Page
  • CAD Drawings
  • CO Resource Page
  • Heat Resource Page
  • i³ Resource Page
  • i⁴ Resource Page
• Audible/Visible
  Notification
  • Devices
  • Chimes
  • Chime Strobes
  • Horns
  • Horn Strobes
  • Speakers
  • Speaker Strobes
  • Strobes
  • Specialty
  • ExitPoint
  • Mini-Horns
  • MNS/General Evacuation
  • Other
  • Accessories
  • Resources
  • AV Resource Page
  • CAD Drawings
  • EASE Evac Software
  • EASE Speaker Test Reports
  • ECS Resource Page
  • ExitPoint Resource Page
  • Explanation of Published Voltage, Current, and SPL Specifications
  • Online Tools
  • Voice Evac Design Info
  • Voice Evac Systems
• HVAC Systems
  Monitoring
  • Detectors
  • Conventional
  • Intelligent
  • Specialty
  • Special Applications
  • Watertight
  • Other
  • Accessories
  • Multi-voltage Relays
  • Resources
  • CAD Drawings
  • InnovairFlex Resource Page
• Sprinkler Systems
  Monitoring
  • Detectors
  • Waterflow Detectors
  • Specialty
  • Alarm Bells
  • Explosion Proof
  • Switches
  • Pressure Switches
  • Supervisory Switches
  • Other
  • Accessories
  • Resources
  • CAD Drawings
  • EC Declaration of Conformity
  • Sprinkler Resource Page
  • System Sensor Now Offers CPD Approved Flow Switches
• Intelligent
  Detection
  • Detectors
  • Beam Smoke Detectors
  • Duct Smoke Detectors
  • Eclipse
  • Multi-Criteria
  • Pinnacle
  • Smoke Detectors
  • Thermal
  • Modules
  • Modules
  • Other
  • Accessories
  • Bases
  • Resources
  • Acclimate Brochure
  • AMCF/CO Resource Page
  • BEAM Resource Page
  • CAD Drawings
  • Heat Resource Page
  • Multi-Criteria Resource Page
  • Pinnacle Brochure

Back Voice Evacuation Design Information

Sound Pressure Loss with Distance Calculator

Enter speaker dBA specification at 10 feet and other distances are calculated in a table below.

dB spec (dBA @ 10 ft.):