Dodecahedron Speaker

Dodecahedron Speaker

The ultra-lightweight, omnidirectional dodecahedron speaker has been specifically designed for sound insulation testing between rooms according to ISO 3382-1, ISO 3382-2, ISO 140-4, and ISO 16283-1.

With a weight of only 5 kg and a sound power level of 120.5dBC, it is one of the lightest and most efficient speakers, perfect for supporting building and room acoustic measurements.

Technical Specifications


  • Weight: 5 kg (without tripod)
  • Sound power level: 120.5 dBC (referenced to 1pW) with pink noise
  • Frequency range: 50 Hz – 12 kHz, with maximum certified power in the range of 100 Hz to 10 kHz
  • Omnidirectional and uniform directivity according to ISO 3382-1, ISO 3382-2, Annex A1 of ISO 140-4, Annex A2 of ISO 16283-1:2014, and Annex D2 of ISO 10140-5
  • Number of speakers: 12
  • Diameter: 31 cm (distance between opposite faces)
  • Permissible electrical power: 300 W (RMS)
  • Impedance: 53 Ω
  • Standardized input connector: Type “SpeakON”
  • Battery-powered operation possible with optionally available power station

Other Accessories

Tapping Machine

Tapping Machine

The maintenance-free tapping machine is qualified for measuring impact sound insulation according to ISO 16283 and ISO 10140.

  • Weight: 10.6 kg
  • High precision due to electromagnetic lifting mechanism
  • Battery-powered


Ultraschall Lautsprecher

Ultrasound Transmitter

The portable ultrasonic speaker is the ideal complement to the Sound Scanner P12 for locating leaks in containers and cabins with high tightness requirements.

  • Number of speaker modules: 9
  • Frequency range: 39.6 kHz – 39.8 kHz
  • Battery-powered


Do You Want to Learn More?

Our experts are happy to provide you with information on technical specifications, prices,
and potential applications of our accessories in combination with our acoustic camera.