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.
Radiant Sound Works - Mansfield, Ma - Tube equipment repair
Radioactive - Tom Ronan's DIY horn speaker & Tube audio site
Radiophile - Old radios and mono record players
Rádios Antigos no Brasil [Antique Radios in Brasil]
Radio Shack Sound Level Meter Accuracy Test
Radio Shack Sound Level Meter [33-2050] Modifications
Rainbow Electronics - Specializing in Tube-based electronics - Sacramento, CA
Rakuten Inc - mail order electronics - Japan
Ralph's Electronic Supplies - LA & TX
RAM Audio - professional amplification
Ram Electronics - audio adapters and cables
Ram Labs - Music Reference - Roger A. Modjeski
Randolph Electronics - Bowling Green, KY
Random Access - Digital Recording Forum
Ranger Audio Enterprises Calgary, AB Canada - Providing services, mods & repairs
Rapco International Leaded - Cable
Raphael Audio Workshop by Ulrike Raphael - Gladbeck, Germany
Raphael Sound Design - Digital Sound Acquisition and Processing
Rapid Audio Warehouse - mail order audio
Raveland - German Speaker manufacturer
Ravemaster - German Speaker manufacturer
Raxxess - electronic racks and related accessories
Raxx L.L.C - Car and home audio dealer - Genesee Depot, WI
Raymond van Weeghel's pages on DIY audio
Ray Samuels Audio [RS Audio] - manufacturer of the EMMELINE RS-1A pre-amp
Raymond Sarrio Company - Electron Tubes
RB Elektronica - Hét Elektronica vakblad voor de hobbyist, professional en student
RECORDED MEDIA SUPPLY - Tape And Related Supplies For Recording Professionals
Recording Architecture - Recording Studio designers/ architectural acoustics consultancy UK & USA
Recording Connection - on-the-job training in major recording studios
Recording FAQ - maintained by Erwin Timmerman
RECORDING INDUSTRY ASSOCIATION OF AMERICA, INC. - RIAA
Recording Underground - CDR info
Red Blues' Conversion Services - Tape to CD or MP3 conversion
Red Rose Music by Mark Levinson
Red Trumpet - source for music storage accessories
Reed Kotler Music, Inc. - music study recorders
Reference 3A - Loudspeakers - Kitchener, Ontario, CA
Reference Audio Video - Southern CA
Reflection Audio - preamplififer manufacturer - Stephen Balliet's designs
Rega Research - Walrus Systems Hifi Website
REGNAR Co. - The Dahlquist Specialists
Reichelt Elektronik GmbH - recording media - Sande, Germany
Reimer Speaker Systems: High Fidelity Stereo Loud Speakers
Reino Messina S.A. - San Bernardo - Santiago - Chile
Reliability Engineering & Harris Semiconductor
Remembrance of Sound Past in Seattle
REMO Loudspeakers - DIY speaker systems and supplies
Remote Central - Universal Remote Control site
Renaissance Amplification - tube amplification - England
Renato Giussani's personal site - designer of the italian loudspeaker system ESB 7/06
Rent Com - Sound Systems - Schiller Park, IL
Repairnow.com - Find experienced quality service in your area to repair anything audio
RESIDENTIAL SYSTEMS, INC - custom installation in Denver. CO
Resistor Color Codes Calculator
Resolution Audio - digital audio products
Resources for CD-R and Stereo Pairs
Restek oHg - German electronics manufacturer - Fuldabrock, Germany
Rethm - full range, single driver, voice coiled loudspeakers using Lowther
Review 33 - an audio review site from Hong Kong
REVOX - German Site [also in English]
REVOX - Swiss Site [also in German & English]
REVOX - unoffical site - German
Research and development at IRCAM
RGB Productions - Professional Sound Systems
RGW Design - transformer design and manufacturing manuals by Robert G. Wolpert
Rice Audio - professional audio adapters
Richard Hall's Audio pages - includes sonotube cabinet calculator
Richard L. Hess Broadcasting Main Page
Richard Lerman's Sound Art Pages
Richer Sounds UK - Mailorder Hifi - London, UK
Richer Sounds UK - Mailorder Hifi - London, UK
Richmond Sound Design Analog Products
Ridge Farm Industries - tube amplifiers
Rik Stoet High End Audio BV - Holland
Ringmat Developments - Record playing accessories - UK
River Oaks Car Stereo - Houston TX
RITOP Mobile Electronics Installation School
Riverside Music and Technology
Rives Audio - EQ and test software for room equalization
RJM Audio Cable - DIY Hi-End Cables
RJPC - Robert J Popham Company - design center for high quality consumer electronics
R.M Audio - Australian distributors for Audison of Italy
RME Intelligent Audio Solutions - digital audio products - USA
RME Intelligent Audio Solutions - digital audio products - Germany
Robert J. Popham Company - design center for high quality consumer electronics
Robert S. Kinann's Sony Color Minidisc Blowout!
Robison Electronics, Inc. - parts supply
Rob Uyeyama's High End Acoustics
Roca i Batlle - Pro Sound Distributor - Barcelona, Spain
Rock Park - live recording info
Rockustics, Inc - stealth outdoor speakers
Rocky Mountain Sound Online - Vancouver, BC
RODE Microphones - high quality microphones - Rhodes Australia
Rodec - high quality professional mixers from Belgium by Transtel Sabima Ltd
ROGER RUSSELL'S Home Page - former McIntosh employee with lots of information for you
Rogers International (UK) Limited
Rogue Audio Vacuum Tube Amplifiers
RÖHRENVERSTÄRKERR Tube Amplifiers
Roister - audio research and manufacturing company in Greece
Role Audio - loudspeaker manufacturer - Research Triangle Park, NC
Rolf Bergendorffs Radio Museum
Rolling Sounds Car Audio & Security - Hollister, MO
Rolling Thunder Software - AV automation and control
Rolls Corporation - signal processors, amplifiers, mixers, signal sources, and interface accessories
Room Service Audio and Video Systems - Tigard, OR
Rorke Data - hardware and software digital storage
Roscoe Primrose's Ultra-Fi Page - DIY Audio
Rotac Électronique Inc. - HiFi Audio & Home Theater - Quebec, Canada
Roundffusor1 - acoustical diffuser and self adaptable low frequency absorber
Rowtex - Premiums supplier of electronics - UK
Roxy Systems, Inc - mail order audio/video - Marlborough, MA
RR Audio - high resolution loudspeakers
RS Components - electronic parts - UK
RS On-Line - mail order electronics - UK
RSP Technologies - Pro Audio Signal Processing Equipment
RS SPL METER (33-2050) MODIFICATIONS
RTZ Audio - professional studio recording preamplifiers - Alpharetta, GA
Ryan's Audio - mail order car stereo
Ruark Acoustics Ltd - Home Page - British Loudspeakers
RuBe - HiFi distributor in Skien, Norway
Rubycon Corporation - capacitors and more
Rudy Godmaire's DIY audio pages
Rush Sound - manufacturer of high quality powered speakers
Russ Andrews Accessories Ltd - Audio Cables and Accessories - UK
Russell Industries Inc. - Electronic Distributor for parts, components, and belts
Russell Warshay's DigiSoniK - High End Audio
Russound - manufacturer of audio distribution products and the revolutionary A-Bus system
Rustrak Ranger - Audio measurement
Ryan Gobel's photos of his DIY Amp
