Custom Audio Designs Ltd 

Acoustic Diffusers | Sound Diffusers | Diffusion Panels | Sound Scattering Panels

RPG Harmonix DiffuserRPG Harmonix DiffuserRPG Harmonix DiffuserRPG Harmonix DiffuserRPG Harmonix Diffuser

  • Can be used in T bar ceiling grids.
  • Wall mount optional.
  • Provides useful absorption.
  • Unique sculptured topography.
  • Various Paint Option Finishes.
  • Various Fabric Option Finishes.
  • Various Film Option Finishes.
  • K-Version lightweight.
  • Hardwearing.

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RPG harmonix diffuser


HARMONIX diffuser panels scatter incident sound uniformly so that the acoustic glare in all directions is minimised.

Harmonix can be mounted in a standard T-bar ceiling grid or on walls with optional backing battens.

Harmonix utilises aperiodic modulation of a single asymmetric base shape technology to provide an interesting, modern, contoured surface that has the appearance of a bas relief sculpture. The centre of each panel is asymmetric, however, the sides are identical. Therefore this unique acoustically optimised shape offers the opportunity to create an unlimited range of surfaces determined only by the orientation of adjacent panels.

Acoustic Performance


In a drop ceiling application, there will be some absorption caused by leaks between the grid and tile as well as tile surface resonance. This is kept to a minimal amount with an FRG unit due to mass and surface rigidity.

The K version surface mounted provides significant absorption at 125Hz due to the flexing of the face material.


The random incidence acoustical data illustrates how the Harmonix K provides useful sound diffusion in the mid and high frequency range. The chart displays the normalized diffusion coefficient, according to AES-4id-2001 and pending ISO 17497-2, the correlation scattering scattering coefficient for computer modeling calculations and the E-mount absorption coefficient for reference.

Colour:White as standard but paint, fabric and film options available
Thickness:100mm (when mounted in a ceiling grid projection is 60mm)
Weight:Kydex - 1.5kg
Gypsum - 6kg
Flammability:Kydex - self-extinguishing
Gypsum Class0

All information contained in these details is given in good faith but without warranty.
Custom Audio Designs reserves the right to alter the specifications of any product without notice.
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