Gathers more than 5000 links in alphabetical order.
This appendix was made possible thanks to the documentational work of Steve Eklab. At the following link you can find the original list made updated by Steve: http://www.audiogrid.com/arsl.html
I'd like to thank the author for allowing me to feature his work.
U Alberta Electrical Engineering FTP Service
UF Technology - one stop connector house - Sim Lim Square, Singapore, China
UKD - UK Distributors Of The Finest Italian Audio Products
Ulrich Haumann's Vintage HiFi Pages - DIY projects including plasma speakers
Ultrasound Hifi - amplifiers, cables, and speakers - Italy
Ultimate Entertainment and System Design
Ultimate Sonics - Distributors of High End Hi-fi - London, UK
Ultimate Sound & Security Keyport, NJ
Ultimate Speaker Company - US Enclosure Company - Composite enclosures by Kris Metaverso
Ultra-Fi - DIY audio - by Steven St.Laurent
ULTRASONE - Headphones and headsets
Ultrasound HiFi - Padova, Italy
Unbeatable Company UK - mail order electronics
UNCA Audio Engineering Department
Underground Sound - Memphis, TN
Understanding the Sony Ear Bud line
Under the Couch Recording Studio
Underwater acoustics - University of Bath
Unified Box Model for Loudspeaker Design
UNI HiFi - high quality audio - Bremen, Germany
United States Autosound Competition - USAC
UNI-TONE Electromart - Audio Retailer - Singapore
Unity Motion Widows and Orphans - A Home Theater
Universal Audio - authentic reproductions of vintage analog equipment
Universal Electronics, Inc. (UEIC)
University Audio Shop - fine audio equipment - Madison WI
University of Akron - Department of Physics MUSIC, SOUND AND PHYSICS
University of Denmark Department of Acoustic Technology
University of Essex - Department of Electronic Systems Engineering
University of Ghent, Belgium - Acoustics
University of Hannover, Hannover Germany - Audio software page
University of Salford Applied Acoustics Department
University of Southampton - Department of Electronics and Computer Science
University of Washington - Consumer Electronics Design Education Project
Unleash Your Music - Downloadable E-Book on how to make your system most musical
Unofficial Coda Technologies page
Unofficial Ricoh CD-ReWritable Page - CDRW-capable AudioCD Players
Unoffical Sharp 701/702 MiniDisc homepage
Unplugged Sound - Acoustic Sound Reinforcement & Audio Engineering by Anton Niedersteiner
Upscale Audio - rare tubes and home theater - Upland, CA
Upscale Audio Exchange - new and used audio equipment - Hollywood, Florida
USA Audio Video - mail order AV out of Minnesota
USAcoustics - Car Audio Amplifiers
Used Sound - completely free, classified advertisements
UsedSSL.com - The offical factory source for used SSL consoles
Usher Audio - Loudspeaker and electronics manufacturer - Taipei, Taiwan
U.S. Optical Disc - Sanford, Maine
US Speaker - professional speaker parts and components
Utility Muffin Research Kitchen [Frank Zappa's famous studio]
