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| Audio Design Associates Manufacturer of audio equipment for home theaters. |   |
| Dolby Laboratories Dolby Laboratories develops audio signal processing systems and manufactures professional equipment to implement these technologies in the motion picture, broadcasting, and music recording industries. |   | |
| American Technology Corporation Provider of audio technology that develops and licenses patents-pending sound reproduction technologies and electronic products. |   | |
| BostonLight and Sound Based in Boston, MA. Theatrical projection systems and professional audio products. |   | |
| Amplifier Technologies Produces high-power, multichannel power amplifiers for audio or theater systems. |   | |
| Audio Artistry Specializes in speaker product lines. |   | |
| SDDS Digital Sony Dynamic Digital Sound (SDDS) is a digital sound format for motion picture theatres. |   | |
| American Power & Light Specializes in high-end audio equipment for theaters. |   | |
| Hafler The company is part of the Rockford Corporation, an audio electronics man. Tempe, Arizona based distributor of professional audio equipment such as amplifiers and reference monitors for use in recording studios, movie theaters and concert halls. |   | |
| Stage Accompany It exports to more than 30 countries worldwide. Stage Accompany is a Dutch manufacturer of high quality sound equipment. |   | |
| Audio Concepts, Inc. (ACI) Manufacturer of speakers and other audio accessories. |   | |
| Atma-Sphere Music Systems Provider of triode, class A, balanced output transformerless (OTL) amplifiers and preamplifiers. |   | |
| Lucasfilm THX There are currently more than 2000 THX certified theatres worldwide; each comprised of a unique combination o. THX Theatre Program has been responsible for providing theatre design, specifications, and certification for optimal film presentation. |   | |
| Audio Pro Manufacturer of amplifiers and audio equipment. |   | |
| Audio Research Manufacturer of precision, hi-fi audio equipment. |   | |
| Yamaha Corporation of America Yamaha distributes professional audio components to dealers, providing quality products for pro audio needs. Yamaha Pro Audio is a part of Yamaha Corporation of America. |   | |
| Arcam Distributor of various audio equipment throughout Europe. |   | |
| Dartech, LLC. The DART(R) PRO 32(tm) can play, record, edit and enhance audio files. DART(R) CD-Recorder(tm) can organize music from any source, put it into a play list then record the information onto . Developer of audio recording and restoration software. |   | |
| QSC Audio Products Inc. Based in Costa Mesa, California. Manufactures sound equipment including amplifers and signal processors for professional use. |   | |
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