Created by John Calder and Mark Stender of Acoustic Geometry, the ABM CornerSorber is a laboratory-proven bass absorber design that allows maximum pressure-zone room-mode reduction due to close-corner placement. The uniquely-shaped bass absorber is beveled on two sides and the top, allowing a pair of CornerSorbers to be set up three inches from, and parallel with, each corner wall, either vertically or horizontally, for the most efficient and effective reduction of low-frequency room-mode pressure waves.
“In developing the CornerSorber, our design goal was to give customers an affordable, easy-to-use solution that would realistically reduce destructive low-frequency room modes,” says Calder. “We also wanted to avoid claiming product attributes that were not accurately tested in large enough facilities or with real-use positioning. We tested the CornerSorbers at NWAA Labs. Their test chamber is the largest in the U.S., and accurately measures absorption down to 40Hz per ASTM C423. We also tested the products where they’ll be located in audio rooms, which is deep into ninety-degree corners. The test results show that this close-corner setup creates a very efficient and effective low-frequency absorber. Needless to say, we’re very happy with the results!”
Acoustic Geometry’s ABM system allows for a high level of low-frequency performance when utilizing both CornerSorbers and Curve Diffusors, which also feature accurately-tested low-frequency MLV membrane absorption. The combination has a complementary range of frequencies that produces consistent bass-energy absorption from 50Hz to 500Hz. The CornerSorber’s form factor of 24” by 42”, with a 6” depth, allows both a small footprint and either vertical or horizontal orientation. With the Curve’s smooth phase-coherent diffusion, the combination of Curves and CornerSorbers will evenly diffuse frequencies above 500Hz and evenly control frequencies below 500Hz, which is the ideal acoustic treatment solution for nearly any room.
This cost-effective system can be used in many applications, including recording and mastering studios, video production and post houses, audiophile listening rooms, home theaters, live-performance and event venues, concert halls and auditoriums. Acoustic Geometry’s ABM CornerSorber will also complement any room design. Various finishes are available, including black-stained oak (stock), custom stain and paint colors, several wood veneers (including clear-finish maple, cherry, and walnut), leather and brushed aluminum.
The CornerSorber is set to begin shipping in early 2017.