• ARX Systems - Austrailian Pro Audio Manufacturer
• Acurus
• Adcom
• American Power and Light, Inc. -"21st Century products and concepts", acoustical front projection screen/transducers, linear actuator subwoofer
• Amplifier Technologies - ATI - high-power, multichannel amplifiers
• Amplivox
• Applied Research &Technology
• Aragon
• Atma-Sphere(r) Music Systems - Amplifiers
• Audio Research Power Amplifier
• Audio Valve - tube technology
• Audio by Van Alstine - custom-built audio electronics & equipment
• B.K.Electronics - high power amplifiers and speakers for, cinema p.a, disco's, hifi market
• BCE Electronic Research &Development
• Blade Audio - home and automotive audio products
• Bostwick - home and car audio products
• Brown Innovations Inc. - Virtual Audio Imaging
• Burr-Brown Corporation - IC's, omp-amps
• Carver
• Clarion Car Audio and Beyond
• Consumer Electronics Manufacturers Association
• Counterpoint Electronic Systems
• Cyberfi
• D2Audio - amplifier modules for Home Theater systems
• Diamond Audio Technology, Incorporated speakers and electronics
• Digi-Key Corporation Quality Electronic Components, Superior Service
• Elan Home Systems - manufacturer of distributed audio/video and home automation systems
• Electrofluidics - reference-quality loudspeakers
• Elliott Audio Science &Engineering
• Elliott Sound Products - designs and manufacturers electrical components; site also has commentary and opinions
• Fisher Audio/Video Home Page
• Granite Audio - Rock Solid Music Systems - manufactures speakers, tube power amps, tube preamps, silver interconnects, speaker cables, AC power cords, and accessories
• Grundig
• Hafler
• Hegel Music Systems - Norwegian manufacturer of high end equipment
• Hi-Fi Forum - distributor of Audio Analogue & Pathos Acoustics (electronics), Final Electrostatic & Triangle (loudspeakers)
• ILAB America - exclusively factory direct sales, luxury Home Theater and Multi-Room components
• Intelix
• JVC
• Jim Tate Stereo and Knekt site
• Koss
• Lavardin Technologies - audiophile amplifiers based on low memory distortion exclusive circuits
• Linear Technology Corporation - IC's, DACS, etc
• Logitek Electronic Systems, inc
• Loudspeaker Metal Part - Back Plate(T-Yoke)
• Magnavox
• Maxim Analog - Microcontroller and Communication ICs
• McCurdy Radio Industries Limited
• Michell Engineering Unofficial Page
• Milbert TAmp Hybrid Tube Amplifier
• NAD - UK
• NAD
• Nakamichi America Corporation
• New Way of Reproducing Stereo
• Niles Audio Corporation - home automation & audio products
• Onkyo
• Out Board Electronics Ltd - Automated sound control systems for theatre
• Phillips
• Phonosophie Homepage - one of Europes most innovative high end producers, in the tradition of Naim Audio
• Pioneer Electronic Corporation
• Polyfusion Audio - Electronics
• Power Technology DSP-FX system
• Quicksilver KT88 Mono Amplifier
• REhrenverstÄRkerr Tube Amplifiers
• Richmond Sound Design Analog Products
• Rockford Fosgate Corporation
• SES SA. Stereolith (r) Switzerland single box stereophonic hi-fi speaker system
• SJS Electroacoustics - Valve Amps &more
• SAS Audio Labs - Tube amplifiers, preamplifiers
• Scientific Advanced Technologies
• Seck Audio - German, tube ampliers, parts
• Seven Woods Audio, Inc. - designs products and circuits used in audio applications
• Signature Technologies Inc. - Tube Electronics &Speakers
• Sony
• Sony Computer Audio and Video
• Sound Devices - mixers and audio recording equipment
• Spectron
• Stones Sound Studio - Australia, specialising in custom design for hobyists using the latest software and hardware
• Sumo Audio Products - audio FAQ's and tech notes
• Sunfire
• Svetlana
• Symfonia - "Australia best High End electronics manufacturer"
• TACT Audio - "digital room correction"
• Ultrak, Inc. - Manufacturer of Commercial Audio Equipment including CD Players, mixers, amps, mikes, Speakers, digital dixing and zoning products
• Valve Amplification Company (VAC)
• Varian
• Weiss Engineering Ltd. - professional digital audio equipment for mastering studios
• Z-Man Corporation - Audio Signal Enhancer
• Zapco Mobile Audio Amplification