What We Do and Why We're Different!
MACH™ Testing
(Multi Angle Computerized High-speed Testing™)
"Testing at the Speed of Sound"™"
Originally developed by NASA design engineer and scientist Ron Sauro in 1968 for use in testing the Pioneers 10 and 11, Voyager 1 and 2 and the manned 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 patent-pending MACH™ testing method uses a proprietary array comprised of 19 matched Earthworks M-30 microphones and a precision turntable capable of one tenth degree accuracy. It simultaneously samples impulse responses within a free field environment 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 GLL data. We have the capability to also provide EASE V4, EASE V3, CLF 1 and 2 formats, as well as Preformatted Graph and Chart views for transmission to the customer. These Graphs and Charts are supplied in a vector format for use in cutsheets or advertising materials.
We can also do extended Frequency Response measurements for Sub Woofers down to a frequency of 25 Hz.
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