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Based on works and experiments in the field of sound wave diffusion and the positive aspects that result from the presence of diffusers in rooms, we have built these acoustic diffuser.
Therefore, we are presenting new design proposals that are less common in diffusion structures designed for mobile use. These models are an easy-to-install por table acoustic diffusion shells meant to be used in certain types of musical concerts.
It is a piece that changes the room’s acoustics by enhancing its features.
Diffusion shells are acoustic treatment elements used in large volume rooms, such as theatres and auditoriums. They may also be used outdoors for the performance of concerts by large orchestras or just recitals.
The installation of these acoustic diffusion components is meant to project the non-amplified original sound from the stage towards the audience. This will enable to hear the sound that comes directly from the sound sources and instruments, without the characterization or colouring inherent to the use of electroacoustics.
These shells also enable the stage and the room to be within the same space and not separate in two by the mouth of the stage. These pieces do not need any preparation prior to their installation, just a free stage with good access.
They must be coupled and multiplied in such a way that is adequate to each project in order to obtain a diffusing area that is proportionate to the space in question.


Manufactured with Birch Plywood.
Average diffusion: 0.68/m2 [>100Hz;<5KHz] NRC: 0.23/m2 [>250Hz;<10KHz]
Fire-resistance: Euroclass B-s2, d0 (similar to M1)
100% recyclable
Depending on the space available on the stage, more or less elements may be used in order to form the shape of a perfect shell.
Built on a modular configuration with 120x120cm pieces, up to four modules can be coupled in height, thus totalling a diffusing homogeneous surface of 120 x 480cm.
All AS4 models have 125 x 500 cm (49.2″ x 196.9″).
These models are a large-sized diffusers that provides a very homogeneous diffusion within the sound and diffuse spectrum

Product Information

  • EAN: 5600924039602
  • Reference: WFLAS4
  • Color: BLACK-BROWN
  • Finishing: Wood veneer
  • Material: WOOD
  • Material Info: Finishing BLACK-BROWN Wood veneer
  • Country of Origin: Portugal
  • Model Variant: Woodfoil AS4 WFL060 WOOD - Wood veneer

Model & Sizes

Size Width Height Length
Metric Size 1200 cm 5000 cm 780 cm
US Size 47.24 in 196,85 in 30,71 in
Metric Weight 176,00 kg
US Weight 388,0131 lbs

Acoustic Graph



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