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Acoustic Diffuser QRD67



VAT Included


Free delivery in UAE

An acoustic diffuser is designed to prevent unwanted sound wave reflections in a listening area, catering particularly to the needs of discerning hi-fi enthusiasts. It enhances the overall acoustic quality of the space. Unlike typical sound insulation that absorbs sound waves, a diffuser works by evenly dispersing them.


Its primary benefit lies in enveloping the listening area with sound, eliminating undesirable linear reflections from flat surfaces. Ideally, the diffuser should be positioned between the speakers so that its central point aligns with the midpoint of the wall's height.


At the customer's request, an inverse diffuser can be crafted. This variant is placed behind the listening position, directly opposite the primary diffuser. This arrangement significantly amplifies the effect of diffusing unwanted reflections.


Product Details

Technical Parameters
Diffusion from: 345 Hz
Number of points N: 67x67=4489
Panel depth: 25 cm
Height and width: 168 cm
Inimal distance from the listener: 1,4 m
Depth (including the rear plate and anchoring): 32 cm



The Milk Glass Effect

Using the acoustic diffuser has a similar diffusing effect on the sound as sandblasted milk glass does when placed in front of a light cone. Milk glass evenly disperses, or diffuses the light beams. The exact same effect of evenly and regularly dispersing sound is achievable with an acoustic diffuser.

Acoustic Diffuser – Theory, History

The formula for the calculation of the diffuser shape is based on quadratic differences of sequences from the elementary number theory, as described by mathematicians A. M. Legrand (1752–1833) and C. F. Gauss (1777–1857). The 2D-QRD quadratic diffuser has excellent efficiency, its behaviour can be calculated and it works in both horizontal and vertical planes.

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