Sound Sources

Fulfil Industry Standards

For the proper measurement of building acoustics a range of sound sources is required that should fulfil the relevant standards, for example ISO140.

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Features of Sound Sources


Brüel & Kjær’s range of sound sources are optimized for building acoustics and include omnidirectional sources for excitation of rooms and partitions, and tapping machines for floor excitation.

Available Sources

  • Power amplifier – Type 2713
  • Power Amplifier – Type 2734
  • Measurement Power Amplifier – Type 2735
  • Tapping Machine – Type 3207
  • Reference Sound Source – Type 4204
  • OmniPower Sound Source – Type 4292-L
  • OmniSource Loudspeaker – Type 4295
  • OmniSource with 4299 Volume Velocity Adaptor – Type 4295
  • Echo Speech Source Type 4720

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Sound Sources

Please fill out the form to request a quote or receive more information about this product. Alternatively, you can call 1.877.295.4095 and we will be able to answer any questions you may have.

Need Assistance or Additional Information? 

We help customers measure and manage the quality of sound and vibration in their products and acoustic environments. We’re here to help, simply get in touch.