STEALTH Diffusers are 2D (two-dimensional) diffusers that scatter sound energy horizontally and vertically, thanks to the random elevations and varied patterns of STEALTH’s surface.

STEALTH Diffusers expand the listener’s sound field for a more enveloping experience.

STEALTH Diffusers are installed in a Kinetics StretchTRAK system or other stretched-fabric acoustical systems, where they disappear from view.


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Acoustical Benefits

  • Scatters sound energy into the room by controlling harsh, specular reflections
  • Improves sound clarity and uniformity throughout the listening space
  • Adds a sense of spaciousness and balance in critical listening rooms
  • Expands the sound field for a more lifelike listening experience
  • Improves speech intelligibility
  • Controls flutter echo on parallel walls

STEALTH Diffusers are manufactured in a black thermo-molded, rigid copolymer material to provide cost-effective diffusion for home theaters, home studios, two-channel rooms, and other critical listening environments.

StretchTRAK Acoustical Wall and Ceiling System
StretchTRAK Acoustical Performance

STEALTH Diffuser dimensions are 20-1/2" W x 44-1/2" H. They can be oriented horizontally or vertically. They are available in three thicknesses that fit within 1-inch, 2-inch and 4-inch stretched-fabric acoustical systems.

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Product Details

STEALTH Diffusers are made of thermo-molded copolymer materials in a rigid form.

Color: Black
20-1/2" x 44-1/2" x 3-1/4" deep
Use in 4" StretchTRAK Systems
20-1/2" x 44-1/2" x 1-5/8" deep
Use in 2" StretchTRAK Systems
20-1/2" x 44-1/2" x 3/4" deep
Use in 1" StretchTRAK Systems

Installation Guidelines

STEALTH Diffusers are installed on walls and ceilings, according to the acoustical room design. Although installation is typically done by Kinetics-certified StretchTRAK system installers, STEALTH Diffusers can be installed by following the guidelines below.

Tools and hardware needed

  • Utility Knife
  • Construction Adhesive
  • Drywall screws (length)
    • STEALTH 1 (1-inch)
    • STEALTH 2 (1-1/4 inch)
    • STEALTH 4 (2-1/2 inch)


  • Mark the surface area where the diffuser will be placed.
  • Apply construction adhesive on the back of the diffuser, where contact will be made with the wall or ceiling.
  • Run drywall screws through the face to hold in place while adhesive cures.
  • If necessary, diffusers can be cut with a table saw or sharp utility knife to fit an appropriate size for the intended area.