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Aeolian® Diffuser

Acoustics First® Aeolian® Diffusers use a mix of technologies to create an organic quadratic diffuser. Similar to the Art Diffuser Model D mathematically, the Aeolian® is a bicubic interpolation of a Prime Quadratic Diffuser, bridging the mathematical with the artistic. This combination creates a smoother frequency transition, wider operating range, and more forgiving diffusion pattern. Created for use in a drop ceiling grid, or direct wall mount, the Aeolian® can be placed where you need it to optimize your acoustic space.

The Aeolian® uses a unique design process that incorporates "implied symmetry" to defeat lobing problems. The entire diffuser is asymmetric, including the edges. Each edge is designed to vary in height by less than the width of the flange gap, creating an "implied symmetry", without actually being symmetric. This feature eliminates all symmetry from the diffuser, complementing the undulating topology of the geometry and creating a unique aesthetic, while also enhancing the acoustic effectiveness.

Aeolian® Diffusers may be installed into heavy-duty 15/16" face lay-in ceiling grid systems. They may be direct mounted on a wall surface as well.

Fire Rating: Class 1 (A) Per ASTM E84

Material: Class A Thermoplastic

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Acoustics First Quadratic Aeolian® Diffusor


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Size:   23-3/4" x 23-3/4" Nominal
Depth:    5.1" (nominal)
Weight:   4 lbs. per unit
Mount:   Drop into T-Bar Grid (15/16") or direct wall mounted
  Aeolian® Diffuser Specifications
    TecSpec Page - Click Here

Absorption Performance Characteristics - Aeolian® Diffuser
Frequency 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz NRC
A Mount 0.55 0.24 0.22 0.16 0.10 0.13 0.20
Type E400 0.40 0.26 0.26 0.25 0.17 0.15 0.25
E400 w/ Insulation 0.41 0.24 0.25 0.25 0.17 0.15 0.25
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Big3 Studios - Aeolian® Diffusers

Big3 Studios - Aeolian® Diffusers

Art Diffusor® Model C, Model F and Aeolian® Diffusers

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WARNING: This product can expose you to chemicals including Antimony Trioxide (A Fire Retardant), which is known to the State of California to cause cancer. For more information go to