Dodecahedron Loudspeaker Nor283

The Nor283 is a powerful omnidirectional sound source designed to produce a uniform sound field for acoustic measurements. Its dodecahedron design ensures consistent sound radiation in all directions, making it ideal for reverberation time and sound insulation tests. Despite its high sound power output of 123 dB, the unit weighs less than 5.3 kg and can operate for more than an hour on a single charge. When paired with a Nor282 or Nor280 amplifier, the Nor283 provides reliable and repeatable results in compliance with international standards.

Typical Applications

  • Laboratory airborne sound insulation tests (ISO 10140‑5 Annex D)
  • In‑situ airborne sound insulation measurements (ISO 16283‑1 Annex A)
  • Room acoustics measurements of reverberation time and parameters (ISO 3382‑1 Annex A)
  • Any application requiring a powerful, omnidirectional sound source

Key Features & Benefits

  • Delivers 123 dB omnidirectional sound power with uniform radiation
  • Lightweight (under 5.3 kg) and rugged for both field and laboratory use
  • Optimised for use with Nor282/Nor280 amplifiers; built‑in presets ensure flat frequency response
  • Supplied with calibration certificate, tripod and cables for a complete setup
  • High‑density polyethylene cabinet and neodymium magnets for durability

In‑Depth Overview

The Nor283 is a powerful omnidirectional sound source designed to produce a uniform sound field for acoustic measurements. Its dodecahedron design ensures consistent sound radiation in all directions, making it ideal for reverberation time and sound insulation tests. Despite its high sound power output of 123 dB, the unit weighs less than 5.3 kg and can operate for more than an hour on a single charge. When paired with a Nor282 or Nor280 amplifier, the Nor283 provides reliable and repeatable results in compliance with international standards.

Technical Specifications

Parameter Specification
Sound Power Output 123 dB omnidirectional
Weight Under 5.3 kg
Operating Time More than 1 hour continuous
Compatibility Designed for use with Nor282/Nor280 amplifiers
Compliance Standards ISO 10140‑5 Annex D, ISO 16283‑1 Annex A, ISO 3382‑1 Annex A

Resources & Downloads

For detailed specifications and additional information, please visit the manufacturer’s product page or download the resources below.

Customer Questions

Have any questions? See our FAQs below or get in touch.

Interested in the Nor283?

Get more information