Abouthttp://www.greenmountainaudio.com/about/More about time-coherent sound, loudspeaker designer and physicist Roy Johnson, and Green Mountain Audio, Inc.en-US2012-02-09T16:55:02ZSquarespace Site Server v5.11.81 (http://www.squarespace.com/)Abouthttp://www.greenmountainaudio.com/about/about.htmlGMA2008-10-15T00:06:42Z

Our difference: Time-coherent sound

What is Time-coherent Sound? - How We Engineer It


Our technique

Speaker Technologies - Manufacturing - Q-Stone™ Cabinets


Our designer: Roy Johnson

Biography - Achievements in Sound Reproduction


Our company

News - Contact - Worldwide Sales

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