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Norsonic is a leading supplier of noise excitation equipment as well as sound measuring systems for building acoustics.

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Norsonic is a leading supplier of noise excitation equipment as well as sound measuring systems for building acoustics.

Applications

  • Conforms to ISO 10140-5 Annex D for laboratory airborne sound insulation
  • Conforms to ISO 16283-1 Annex A for in-situ airborne sound insulation
  • Conforms to ISO 3382-1 Annex A: 3 - 1 for room acoustic parameters (reverberation time)

Key features

  • 123 dB sound power output
  • Lightweight, small size and rugged design for both laboratory and field use
  • Supplied with individual calibration certificate confirming directional radiation response

About

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The Nor 283 has been designed for continuous operation for more than one hour at full power. It is mainly designed to be used with the Norsonic power amplifiers Nor280 and Nor282. These amplifiers have built in limitation circuits to protect the speaker from unwanted high and low frequency components outside the frequency bands required for sound insulation testing.

The battery-operated power amplifier Nor282 has preset functions to optimize the response of the Nor282. Further enhancement of the frequency response to match the room characteristic is easy using the built-in graphical equalizer.

The low weight of less than 5,3 kg is obtained by use of specially designed loudspeaker elements with neodymium magnets. The low weight, however, does not come at the expense of robustness.
The cabinet is molded in high density polyethylene and the speakers are protected by bespoken steel grids.

The speaker comes with a high-quality tripod ensuring correct placement so that unwanted reflections and structural transmissions are kept at a minimum. Inside the 25 mm tripod tube mount on the speaker there is a 8 mm threaded screw allowing the speaker to be easily mounted upside down in the sealing of an anechoic chamber or similar.

 

Features

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  • 123 dB sound power output.
  • Lightweight, small size and rugged design for both laboratory and field use.
  • Conforms to ISO 10140-5 Annex D for laboratory airborne sound insulation.
  • Conforms to ISO 16283-1 Annex A for in-situ airborne sound insulation.
  • Conforms to ISO 3382-1 Annex A: 3 - 1 for room acoustic parameters (reverberation time).
  • High sound power at low and high frequencies.

Standards

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  • ISO 717-1, ISO 717-2
  • ISO 1793-1, ISO 1793-2, ISO 1793-3
  • ISO 10140-2, ISO 10140-3, ISO 10140-5 Annex D, ISO 10140-5 Annex E
  • ISO 10848-1, ISO 10848-2
  • ISO 16283-1, ISO 16283-2, ISO 16283-3
  • ISO 354
  • ISO 3382-2

Video

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Specifications

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Physical design:  Dodecahedron
Sound power output:
Using the Nor282 with pink noise, and equalisation: 123 dB (Lin)
Using the Nor280 with pink noise, and equalisation: 120 dB (Lin)
Speakers:  12×4″
Power (broadband):  AES Power Handling 360W / Max Power Handling 720W
Impedance:  2,7 Ohm
Diameter:  270 mm (10,63”)
Weigth:  5,3 kg (11,7 lb)
Tripod mounting rod:  3/8” – 16 Tripod screw. 25 mm diameter rod

Accessories incl.:
 – Tripod
– 5 m assembled cable, if ordered with Nor282 or Nor282
– 25 mm diameter rod included with Nor283 for mounting on the tripod

Downloads

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Product data

Nor280 power amplifier, Nor282 power amplifier, Nor283 dodecahedron loudspeaker

  • Nor280, Nor282, Nor283 - March 2024 rev.2

    PD-Nor280_Nor282_Nor283-March-2024-rev.2.pdf (2084.72KB)
    Released 13/03/2024
    Download

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Norsonic AS
Gunnersbråtan 2
N-3409 Tranby
Norway

+47 32 85 89 00
info@norsonic.com

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