Auralex’s Peak Pyramid Diffusors scatter sound both horizontally and vertically and can be placed closer to the listener than most other acoustic diffusers.
Optionally, the lightweight Peak Pyramid can be filled with absorption (medium density fibrous material such as rockwool or recycled cotton felt) so that it absorbs low frequencies and scatters mid to high frequencies. They can also be mounted over top of other acoustic panels (typically bass traps).
The shape of this geometric diffuser creates a notch in the scattered response. To visualize this, imagine a sound wave hitting it straight on. When this happens, the pyramid geometry disperses sound in multiple directions, but not the direction it came from.
The standard 2’x2′ nominal size makes the Auralex Peak Pyramid Diffusors easy to mount: They can be installed into a suspended ceiling grid or mounded to a wall using the included hardware.