Search:
 
 FRG Omniffusor

Diffusive ceilings and walls are one of the most effective ways to simultaneously control room reflections and provide a natural ambiance. Since ceiling systems and wall applications often cover appreciable surface areas, a cost-effective 2D diffusor is required. To meet these needs and life safety fire codes, RPG® developed the first non-combustible Fiber Reinforced Gypsum (FRG) modular 2D diffusor that tegularly mounts in a standard T-bar system.

The FRG Omniffusor™ uniformly scatters sound arriving from any direction into many directions, providing ideal distribution and coverage. It’s unique shape also adds the visual interest of a bas relief sculpture.

Problem
To provide 2D diffusion for large surface areas and meet life safety fire codes, a molded modular diffusor that mounts in conventional T-bar systems is needed.

Solution
The FRG Omniffusor™ is the first cost-effective, non-combustible, molded Fiber Reinforced Gypsum 2D QRD®. It offers twice the reflection attenuation of the 1D QRD® because it scatters sound uniformly into a hemisphere. The FRG Omniffusor® provides uniform, omnidirectional, broad bandwidth diffusion in an attractive ceiling or wall design element.

Absorption
Recently, it was discovered that phase gratings, consisting of wells of different depths separated by dividers, also may provide sound absorption. The absorption is caused by viscous losses created by high particle velocity flows over the dividers, between wells of different depths and resonant frequencies. The absorption can be enhanced by placing a resistive element, e.g. fabric, near the face of the phase grating. The graph illustrates the absorption performance uncovered, with fabric directly on the surface and at 2" and 7" above the surface.

Diffusion
The FRG Omniffusor™ offers significant diffusion compared to a flat reflector panel above the diffraction limit of 565 Hz, which is determined by the dimensions of the panel. Above this frequency, the graph indicates how the reference reflector becomes more and more specular as the frequency increases, whereas the FRG Omniffusor™ provides a constant diffusivity.

Installation
When suspended in a 15/16" T-bar grid, the FRG Omniffusor™ and FRG Liteffusor™ protrude 3 1/4" into the room. Wall mounting the FRG Omniffusor™ requires custom wooden stiles and rails with a 1/8" dado to capture the perimeter flange.


Home: Products: FRG Omniffusor™

The First Fiberglass Reinforced Gypsum Molded Two Dimensional QRD® From The Acoustical Industry’s Leading Innovator

The FRG Omniffusor™ Product Information (377Kb) PDF file contains this page and the specifications pages listed above.

Viewing this file requires the free Adobe Acrobat Reader.

Applications
Broadcast studios, Worship spaces, Recording studios, Listening rooms, Home theaters, Conference rooms, Mastering studios, Performing arts facilities, Post production studios

Specifications
Acoustical Data
Absorption Coefficients
Diffusion Coefficients

Product Details
Option Sheet
CSI Specifications

FRG Liteffusor™ Option Sheet
FRG Liteffusor™ CSI Specifications

Cutsheets
2' x 2' FRG Omniffusor™

2' x 2' FRG Liteffusor™

Mounting Details
Wall Mount
T-Bar Tilt and Drop

FRG Liteffusor™ T-Bar Tilt and Drop

Features & Benefits
Features
2D QRD® reflection phase grating

Uniform hemispherical scattering for all angles of incidence

Simultaneously offers diffusion and moderate mid band absorption

2D QRD® provides twice the diffusive specular attenuation of a 1D QRD®

Non-combustable FRG

Cost effective molded FRG panel

Available in modular 2' x 2' panels

Liteffusor™ can incorporate down lighting:
FRG Liteffusor
Benefits
The 2D QRD® provides phase variation in two orthogonal directions for uniform omnidirectional scattering

Hemispherical scattering is ideal for ceiling applications because the incident sound is uniformly distributed throughout the room from a planar ceiling surface

The omnidirectional diffusive attenuation, coupled with moderate mid band absorption, provides ideal reflection control without deadening the space

2D diffusive attenuation provides effective diffusive control of strong specular reflections

FRG is non-combustible and can be used in any space to meet life safety fire codes

Low cost allows designers to cover large surface areas for optimum performance

Modular 2' x 2' panels can be wall mounted or suspended in a 15/16'' T-bar ceiling grid

The central flat area (9 3/8" x 9 3/8") of the FRG Liteffusor™ allows designers to incorporate down lighting, sprinklers, projector supports, and other design elements
Copyright 2000, RPG Diffusor Systems, Inc.
651-C Commerce Drive, Upper Marlboro, MD, 20774, Phone: 301-249-0044, Fax: 301-249-3912, E-mail: info@rpginc.com