With hundreds of hours of real world testing, ASC’s unique solution is the best acoustical soffit available anywhere. Acousticians and architects have known for hundreds of years that a soffit is an excellent sound diffuser. ASC improved the idea to include deep bass & midrange absorption and lateral scattering in the treble range. As a bonus, the hollow interior allows you to install lighting, conceal wire runs & conduit, or build around HVAC ducts.
The bulk of an AcousticSoffit system is usually built in 24″ long sections. Subtract 16″ for each of the “corner tiles” and then determine how many pieces you need for your wall’s length. We build all but one of the pieces for each wall segment, and you provide final measurements for us to build you a perfect-fitting “keystone” to complete the installation.
Why Install the AcousticSoffit?
Here is your bare room. These are its sonic characteristics.

- Excessive bass buildup in corners = booming & slurring
- Poor stereo imaging
- Low intelligibility/musical articulation
- Poor balance between mains & surrounds
Front Wall AcousticSoffit

- Head-end ringing control = less upper bass and midrange glare
- Room mode reduction = more even bass notes with less boom
- Improved intelligibility = a musical bassline and clear, tight rhythm
Front Wall Soffit + TowerTraps

- Further improved head-end ringing control
- Two-axis mode control
- Great for dual subwoofer installs
- Dramatic look, like a theater proscenium
Full-Perimeter Acoustic Soffit

- Substantial bass control with ZERO footprint
- Upper corner treble range reflection control
- Lateral diffusion = improved ambience, big sound
- Improves balance between mains & surrounds
- Smooth architectural look – does not look like acoustic treatment!
Full-Perimeter + TowerTraps

When floor real estate is precious, the ASC AcousticSoffit is the answer to your bass trapping, treble control, and diffusion needs. By utilizing a large air cavity surrounded by a flow-resistive membrane made from porous absorptive material, the AcousticSoffit provides the benefits of flat wall panels and large-diameter free standing TubeTraps in a tidy, easy-to-install package.
This is a custom engineered product, sized specifically to integrate into your room and make it sound and look its best. Our standard size unit protrudes 16″ from the wall and 10″ down from the ceiling, which works very well for most rooms. This treatment is roughly equivalent to installing 16″ TubeTraps along the entire length of your wall/ceiling intersection!
ASC engineering has taken care of the math to ensure that your room remains sonically controlled without becoming over-deadened. You will hear much more sonic detail from your speakers, from fine string work in orchestral passages to crystal-clear movie dialog and singers. True broadband control can be yours as musical bass lines emerge and sparkling ambience surrounds you.