Consulting, design and measurement of loudspeaker systems according to DIN VDE 0833-4 and DIN EN 50849

For many public buildings, voice alarm systems in accordance with DIN VDE 0833-4 or DIN EN 50849 are mandatory. We design such systems by computer predictions to confirm that the required speech intelligibility can be provided even before the building is completed. We also assist in designing any necessary room acoustic treatment and undertake the commissioning, optimisation and programming of voice alarm systems on site–anyhwere in the world. For measurements according to DIN EN 60268-16:2012-05 we are accredited according to DIN EN ISO/IEC 17025:2018, Jakob Kraft is “responsible person for voice alarm systems” according to DIN 14675 -1.

In Berlin, Potsdam and Brandenburg we also supply turnkey sound reinforcement systems for churches, conference and seminar rooms and much more.

Design Services

  • Voice alarm systems for airports, train stations and more according to ISO 7240-19 / NFPA 72
  • Emergency Sound Systems according to EN 50849
  • Generation of specifications and tender documents
  • Measurement and analysis of existing systems
  • New planning for projects of any size
  • Prediction of speech intelligibility according to DIN EN 60268-16
  • Certificates according to ISO 7240-19, DIN VDE 0833-4, DIN EN 50849, VDE 0828-15
  • Commissioning & Programming & Verification Measurements
  • Expert reports

Turnkey loudspeaker systems

  • Extensive experience with church PA systems
  • Seminar rooms, event & gastronomy, conference rooms etc.
  • Delivery, installation, commissioning, calibration & service

Our Projects

Any questions?

Just give us a call or write an e-mail!