What we do and why we're different

MACH™ Testing
Multi Angle Computerized High-speed Testing™

“How Accurate is Your Directivity Data?”

Originally developed by NASA design engineer and scientist Ron Sauro in 1968 for use in testing the Pioneer, Explorer and Voyager spacecrafts in addition to the mannned Apollo lunar program, the MACH™ Testing method has been reformulated into a revolutionary process for evaluating loudspeakers and materials. This cross-pollination of technology from the realm of space research to the world of sound and acoustics research has produced a high-speed testing system unlike any other.

The new MACH™ testing method uses a proprietary array comprised of 19 matched Earthworks M-30 microphones and a Linear X precision turntable capable of one tenth degree accuracy. It simultaneously samples impulse responses within an anechoic chamber and uses these to create loudspeaker radiation balloons in a fraction of the time used by other testing methods. This data is gathered by a multi-channel version of EASERA, using appropriate stimuli, and then is converted to EASE V4, EASE V3, CLF 1 and 2 formats for transmission to the customer.