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Building Acoustics Dodecahedron Speaker

Product Code: Nor276

High power loudspeaker for use in building acoustics and sound insulation testing

The Nor276 is a high power loudspeaker with omnidirectional characteristics.

The Loudspeaker meets the requirements of:

ISO 10140-1:2010 (replaces ISO 140-3 Annex C (Laboratory measurements))
ISO 16283-1:2014 (replaces ISO 140-4 Annex A (Field measurements)
ISO 3382 Annex A (Reverberation Time measurements).

The output power level is up to 120 db re. 1pW for a pink noise signal.

The Nor276 has been designed for continuous operation for more than one hour at full power. It is designed to be used with Nor280 Power Amplifier only.

Now able to provide - Verification of dodecahedron loudspeaker directivity in accordance with ISO 16283-1, Annex A.  Requires matched power amplifier.

  • Conforms to ISO 140-3 Annex C standard for airborne laboratory insulation
  • Conforms to ISO 3382-2 Annex A 3.1 standard for reverberation time.
  • Conforms to DIN 52210
  • Powerful - 120 dB Lw
  • Lightweight, portable and rugged design for field use.

Physical design: Dodecahedron

Sound power output: Using the Nor280 with pink noise, and equalisation: 120 dB (Lin)

Speakers: 12×6”

Power (broadband): 200 W RMS Peak 1000 W

Impedance: 2,7Ω

Diameter: 332 mm (13”)

Weight: <9 kg (19,8 lb)

Tripod mounting rod: 1” diameter

Accessories include:

- Speakon NL4FC plug replaced by a 5m assembled cable, if ordered with Nor280

- Tripod

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