Related Sites

Designing & Manufacturing Anechoic Chambers for over 50 years

EW Standard Anechoic Wedge

The EW Standard Wedge is the classic design based on the original geometry established by Beranek and Sleeper at Harvard during W.W.II. Current E.W. Wedges incorporate the latest materials and design modifications for a wedge treatment with maximum broadband performance.

EMW Perforated Metal Anechoic Wedge

The Eckoustic Metallic Wedge represents the execution of the classic design with a perforated metal cover versus the original wire hardware cloth. Utilizing high transparency 22 ga. perforated steel or aluminum, the metal cover is virtually acoustically transparent.

E-Element Anechoic Absorbing Wedge

Utilizing a unique geometry the E-Element offers a new dimension in anechoic chamber construction differing from the conventional wedge design. The E-Element is constructed of multiple parallel surfaces with tapered leading edges that alternate 90 degrees out of phase with one another. This creates a sound absorbing array which achieves cut-off with less depth of treatment than conventional "wedge" designs. [ Patent Pending, Under Development. ]

Acoustic Foam Anechoic Wedge

Acoustic Foams, (polyurethane and melamine) offer acceptable acoustical characteristics in many applications and may be more economical than traditional treatments. Polyurethane foam chambers must incorporate a sprinkler system because they are hazardous if combusted. Properly designed foam chambers work well in many applications.

SuperSoft Panel Lining / Wedge

SuperSoft panel lining for acoustic test facilities was developed to fill "a niche" when a full anechoic chamber was not needed. An existing or new structure could be lined with an extremely high performance acoustic panel to yield a test environment satisfactory for general product testing and noise emission,