Basic Live Sound Reinforcement

A Selection of Pro Audio Manufacturers

Live Audio Manufacturers

• Acoustics First – Bass traps/acoustical treatment/wall-coverings - http://www.acousticsfirst.com/
• Acoustical Solutions – Bass traps / acoustical treatment/wall-coverings - http://www.acousticalsolutions.com/
• Adamson Systems Engineering – Loudspeaker systems - http://www.adamsonsystems.com/
• A-Designs – Preamps, DI boxes, processors - http://www.adesignsaudio.com/
• ADK Microphones – Large diaphragm condenser microphones  - http://www.adkmic.com/index.php
• AEA (Audio Engineering Associates) – Microphone preamps, microphones, microphone accessories - http://www.ribbonmics.com/index.html
• AKG by Harman – Headphones, microphones, wireless systems  - http://us.akg.com/akg-homepage-us.html
• Alesis – Digital recorders, processors, amplifiers - http://www.alesis.com
• A-Line Acoustics – Line array loudspeakers - http://www.a-lineacoustics.com/Default.aspx
• Allen-Heath – Mixing boards - http://www.allen-heath.com/uk/pages/home.aspx
• Amphenol Audio – Cables and connectors - http://www.amphenolaudio.com/
• Amplivox – Portable P.A. for small scale and spoken applications - http://www.ampli.com/
• Anchor Audio – Portable P.A. for small scale and spoken application - http://www.anchoraudio.com/
• Apogee Digital– Digital recording technology (Apple OS) - http://www.apogeedigital.com/
• Aphex – A/D converters, preamplifiers, processors - http://www.aphex.com/
• Apogee Sound International – Rigging, loudspeakers, amplifiers, processers - http://www.apogee-sound.com/
• Arriba Cases– Soft cases for audio, DJ, and lighting gear - http://www.arribacase.com/
• ART Pro Audio – Processors and DJ gear - http://www.artproaudio.com/
• Arx America – Preamps, processors, and DI boxes - http://www.arxamerica.com/
• Ashly – Processors - http://www.ashly.com/
• ATI Amplifier Technologies – Amplifiers  - http://www.ati-amp.com/home.php
• Atlas Sound– Microphone & speaker stands, portable racks, miscellaneous accessories - http://www.atlassound.com/
• Audio Technica – Headphones, microphones, wireless systems, DJ gear, misc. accessories - http://www.audio-technica.com/world_map/
• Audix Microphones – Microphones and wireless systems - http://www.audixusa.com/index_12.shtml
• Avantone Pro – Microphones and monitors - http://www.avantonepro.com/products.php
• Avid VENUE – Digital consoles and mixing systems, plugins and software - http://www.avid.com/US/products/family/venue
• Aviom – Digital snakes, personal monitor mixers - http://www.aviom.com
• Bartlett Microphones – Microphones - http://www.bartlettmics.com/index.html
• Behringer – Well-reviewed budget versions of all categories of live sound equipment - http://www.behringer.com/EN/Home.aspx
• Beyer Dynamic – Headphones, microphones, and microphone accessories - http://north-america.beyerdynamic.com/
• Blue Microphones – Microphones - http://bluemic.com/live/
• Bose Professional Systems Division – Loudspeakers, monitors - http://worldwide.bose.com/pro/en_us/web/home/page.html
• BSS by Harman – Crossovers, graphic EQ - http://www.bss.co.uk/en-US/   
• Bullet Cable – Audio cables and adaptors - http://www.bulletcable.com/
• Cable Organizer – Cable accessories - http://www.hatedcable.com
• CAD Audio – Microphones - http://www.cadaudio.com/index2.php
• Cakewalk – Portable music production studio, recording - http://www.cakewalk.com/
• Chandler Limited – Processors - http://chandlerlimited.com/
• Chase Case Co. – Stock and custom equipment and flight cases and hardware - http://www.chasecaseco.com/
• Checkers Industrial Safety Products – Cable protectors and wheel chocks - https://www.checkersindustrial.com/
• Chief – Rack System
• Clear Sonic Manufacturing – Transparent drum shields and acoustic treatments - http://www.clearsonic.com/
• Coleman Audio – Instrument switchers, VU metering bridges - http://www.colemanaudio.com/
• Cool Casters – Casters and hardware - http://www.coolcasters.com/
• Countryman Associates Inc. – Wireless (lavaliere, headset, held & instrument) mics and DI boxes - http://www.countryman.com/
• Crest Audio – Amplifiers, mixing consoles, speakers - http://www.crestaudio.com/
• Crown by Harman – Amplifiers, microphones - http://www.crownaudio.com/usa/
• DBX Pro Audio – Processors and effects, DI boxes - http://www.dbxpro.com/en-US
• DOD by Harman – Processors, DI boxes - http://www.dod.com/en-US
• DPA Microphones – Wireless (lavaliere, headset, held & instrument) microphones and accessories - http://www.dpamicrophones.com/en
• Drawmer Electronics Ltd. – A/D converters, digital converters, processors, preamps - http://www.drawmer.com/
• Earthworks Audio – Microphones, preamplifiers, and monitor speakers - http://www.earthworksaudio.com/
• EAW (Eastern Acoustic Works) – Loudspeakers - http://www.eaw.com/Main_Page
• Electro Voice – Loudspeakers, amplifiers and microphones - http://www.electrovoice.com/index.php?region=APR
• Empirical Labs – Preamps, processors - http://www.empiricallabs.com/
• Etymotic Research – Earphones, headsets, hearing protection - http://www.etymotic.com/
• Eventide – Effects processors - http://www.eventide.com/AudioDivision/Products.aspx
• Fender – Portable P.A., speaker stands - http://www.fender.com/passport/
• Furman Sound – Rack mounted power conditioners, AC voltage regulators, power sequencers - http://www.furmansound.com/
• Galaxy Audio –Speakers, amplifiers, monitors, microphones, digital recorders, wireless systems - http://galaxyaudio.com/
• Gator Cases – Mixer, mic, and speaker stands, racks and accessories, soft and hard equipment cases - http://www.gatorcases.com/
• Gem Audio Labs – Processors, preamp/processor combo units - http://www.gemaudiolabs.com/
• Hear Technologies – Compact monitor/FOH systems, wireless monitors, analog monitor mixers - http://www.heartechnologies.com/
• HK Audio – Ultra compact portable P.A. speakers - http://hkaudio.com/us/index.php#
• Hosa Technology – Audio cables, snakes, connectors, adapters, microphone stands and accessories - http://www.hosatech.com/     
• JBL Professional by Harman – Loudspeakers - http://www.jbl.com/estore/jbl/us/index.jsp
• JDK Audio by API – Preamps, processor - http://www.jdkaudio.com/
• K & M (König & Meyer) – Microphone and speaker stands - http://www.k-m.de/us
• Korg – Handheld digital recorders, DJ mixers, sequencers, loopers, effects, and misc. accessories - http://www.korg.com
• Lexicon by Harman – Digital processing and effects - http://www.lexiconpro.com/en-US
• Line 6 – Wireless microphones, loudspeakers and stands, digital mixer - http://line6.com/
• LM Cases – Audio gear flight cases and trunks - http://lmcases.com/
• M-Audio – Loudspeakers - http://www.m-audio.com/index.php
• Mackie – Amplifiers, loudspeakers, mixers, processors, digital recorders, all in one P.A. systems - http://www.mackie.com/
• Martin Audio – Loudspeakers - http://www.martin-audio.com/
• MC2-Audio – Amplifiers - http://www.mc2-audio.co.uk/
• Meyer Sound Laboratories Inc. – Rigging and loudspeakers - http://www.meyersound.com/
• Midas Consoles – Digital and analog live audio mixers - http://www.midasconsoles.com/
• Miktek Audio – Preamplifiers and microphones - http://www.miktekaudio.com/   
• Mogami Cable – Audio cables and snakes - http://www.mogamicable.com/
• Monster Cable – Audio cables and snakes, connecters and adapters, cable management and organization tools, headphones and earplugs - http://www.monstercable.com/    
• Moog – Effects processors - http://www.moogmusic.com/
• Neumann – Microphones and microphone accessories - http://www.neumannusa.com/
• Neutrik – Audio cable connecters - http://www.neutrik.us/
• NTI Audio – Test equipment - http://www.nti-audio.com/en/solutions/live-sound/front-of-house.aspx    
• Numark – DJ mixers, controllers, effects, and misc. equipment and accessories - http://www.numark.com/
• Peavey – Amplifiers, loudspeakers, processors/ effects, mics, mixers, power distribution, all in one P.A. - http://www.peavey.com/
• Pioneer DJ – DJ mixers, controllers, effects, and misc. equipment and accessories - http://pioneerdj.com/english/index.html
• Presonus – Microphone preamps, signal processors, digital audio mixers, digital recorders - http://www.presonus.com/
• Prism Sound – A/D conversion, audio test and measurement equipment - http://www.prismsound.com/
• QSC Audio – Amplifiers, loudspeakers, processors - http://www.qscaudio.com/
• Rane – Audio mixers, DJ mixers, processors and effects - http://www.rane.com/
• Rational Acoustics – Creators of the SMAART testing system - http://www.rationalacoustics.com/
• Rockwool International – Acoustic treatments /materials - http://www.rockwool.com/
• Roland – Speakers, amplifiers, monitors, karaoke systems - http://www.roland.com/
• Royer Lab – Ribbon microphones for live sound - http://www.royerlabs.com/liveribbonmics.html
• Sennheiser – Microphones, headphones, and wireless systems - http://en-us.sennheiser.com/
• Shure – Microphones and wireless systems - http://www.shure.com/
• SKB Cases – Transport cases and rack mounts - http://www.skbcases.com/
• Solid-state – Live sound mixer - http://www.solid-state-logic.com/
• Sommer Cable – Audio cables and snakes - http://www.sommercable.com/3__default/index.html
• Soundcraft by Harman – Mixing boards - http://www.soundcraft.com/index.aspx   
• Tannoy Pro – Live sound loudspeakers - http://www.tannoypro.com/
• Tascam – Live sound mixer - http://tascam.com/
• Ultimate Support – Cases and stands - http://www.ultimatesupport.com/
• Wind Tech by Olsen Audio Group, Inc. – Microphone windscreens, pop filters and misc. accessories - http://www.wind-tech.net/
• Yamaha Pro Audio – Digital processors, recorders, and mixers, amplifiers, loudspeakers - http://usa.yamaha.com
• Yorkville – Processors, recorders, and mixers, amplifiers, loudspeakers - http://www.yorkville.com/

Associations, Organizations, Trade Shows, and Conferences

Live Audio – Professional Organizations

• Audio Engineering Society (AES) is the professional society for audio engineers, providing educational resources, leadership in the development of new standards and technologies, and forums for the exchange of creative and scientific information. http://www.aes.org/
• InfoComm is made up of more than 5,000 members, including manufacturers, systems integrators, dealers and distributors, independent consultants, programmers, rental and staging companies, end-users, and multimedia professionals from more than 80 countries. InfoComm offers ESPA certified training in A/V installation.http://www.infocomm.org/cps/rde/xchg/infocomm/hs.xsl/22067.htm
• Pro Light and Sound Association (PLASA) is the lead international organization for those who supply technologies and services to events. https://www.plasa.org/
• The Electronic Systems Professional Alliance (ESPA) is a professional-based organization, for workers who install, maintain, and upgrade A/V and safety systems. The ESPA Certified-Electronic systems technicians (ESTs) and the accompanying curricula set the standard for entry-level ESTs. http://www.espa.org/
• National Systems Contractors Association (NSCA) is the leading not-for-profit association representing the commercial electronic systems industry. http://www.nsca.org/
• National Association of Music Merchants (NAMM) is a not-for-profit association that promotes the benefits of making music and throws trade shows that serve as hubs for audio professionals. http://www.namm.org/about
• The United States Institute for Theatre Technology (USITT) serves professionals and pre-professionals in design, production, and technology for the performing arts, and provides benefits, learning, and networking opportunities for over 3,700 members worldwide. http://www.usitt.org/
• The Association of Sound Designers (ASD) is a professional association representing the interests of sound designers in the UK theatre industry. http://www.associationofsounddesigners.com/
• American Disc Jockey Association (ADJA) is the only registered professional trade association for Mobile DJ’s, Club DJs, and Karaoke Hosts. http://adja.org
• The Freelancers’ Union’s founder notes “Freelancers are 1 in every 3 workers. Together, we're the future of the economy.” FU advocates for issues of concern to all independent workers. http://www.freelancersunion.org/

Miscellaneous Cause-oriented or Charitable Organizations

• Etsa Foundation advocates for safety and training programs, gives grants to students for training in the stage and entertainment industry and runs a charity called “Behind the scenes” that “provides financial support to entertainment technology industry professionals when they are ill or injured or to their surviving family members.” http://www.estafoundation.org/index.htm
• The Black Rock Coalition (BRC) represents a united front of musically and politically progressive Black artists and supporters with the “purpose of creating an atmosphere conducive to the maximum development, exposure and acceptance of Black alternative music.” http://blackrockcoalition.org/
• Women's Audio Mission (WAM) is a San Francisco based, non-profit organization “dedicated to the advancement of women in music production and the recording arts.” http://www.womensaudiomission.org/
• Save Our Sound UK (SOSUK) advocates for adequate public radio bandwidth in the UK. http://www.saveoursounduk.com/p/save-our-sound.html
• The Electrical Safety Foundation International (ESFI) is an organization “dedicated exclusively to promoting electrical safety in the home, school, and workplace. http://www.esfi.org/
• Just a Bunch of Roadies are roadies paying it forward to the needy. http://www.justabunchofroadies.org/
• Future of Music Coalition advocates for “Education, Research and Advocacy for Musicians” and hosts the yearly Future of Music summit . http://futureofmusic.org/
• Fender Music Foundation advocates for music education. http://www.fendermusicfoundation.org/
• H.E.A.R. (Hearing Education and Awareness for Rockers) is a nonprofit organization dedicated to “raising awareness of the dangers of noise exposure that can lead to permanent hearing loss and tinnitus.” http://www.hearnet.com/

Related Audio Industries Professional Organizations

• National Academy of Recording Arts & Sciences (NARAS) http://www.grammy.com/
• Society Professional Audio Recording Services (SPARS) is a collective network of professionals dedicated to improving the business environment for audio production services. http://spars.com
• National Association of Record Industry Professionals (NARIP) brings together innovators in the global record and music industries. http://www.narip.com/
• North American Broadcasters Association (NABA) is a non-profit association of broadcasting organizations in the United States, Mexico, and Canada committed to advancing the interests of broadcasters at home and internationally. http://www.nabanet.com/nabaweb/
• The Society of Broadcast Engineers (SBE) is the only organization devoted to the advancement of all levels and types of broadcast engineering. It also offers option to work toward a number of certifications, including Certified Audio Engineer® (CEA®). http://www.sbe.org/
• The National Association of Broadcasters (NAB) is the voice for the nation's radio and television broadcasters. As the premier trade association for broadcasters, NAB advances the interests of its members in federal government, industry, and public affairs. http://www.nab.org/
• The Association of Independents in Radio http://www.airmedia.org/
• International Radio and Television Society (IRTS). This group was founded as a common forum for workers handling all aspects of electronic media. http://irtsfoundation.org/
• Acoustical Society of America (ASA) http://acousticalsociety.org/
• National Council of Acoustical Consultants (NCAC) accepts professional firms that specialize in acoustical consulting based upon education, references, and most importantly – the proven experience of the principals of the firm. http://www.ncac.com/
• Consumer Electronics Association (CEA) unites 2,000 companies within the consumer technology industry and recognizes ESPA certification. http://www.ce.org/About-CEA.aspx
• The Association for Loudspeaker Manufacturing & Acoustics International (ALMA) is a not-for-profit trade association, dedicated to improving the design and manufacture of loudspeakers. Membership is made up of loudspeaker manufacturers, suppliers of components, consultants, and other service providers to the industry. http://www.almainternational.org/
• American Speech-Language-Hearing Association (ASHA) is a professional association for 150,000 audiologists, speech-language pathologists, and speech, language, and hearing scientists. http://www.asha.org/
• The Association for Recorded Sound Collections (ARSC) is a nonprofit organization dedicated to the preservation and study of sound recordings in all genres of music and speech, in all formats, and from all periods. http://www.arsc-audio.org/index.php
• MITA International – A World Wide Association of Professional Service/Repair Technicians. http://mitatechs.org/public_splash2
• Institute of Electrical and Electronics Engineers (IEEE) is an engineering society that creates an environment where members collaborate on world-changing technologies. http://www.ieee.org/index.html
• Independent Music Conference (IMC) http://www.indiemusicon.com/imc2013/pages/overview.html
• The International Live Music Conference (ILMC) http://www.ilmc.com
• The International Association of Venue Managers (IAVM) – Representing public assembly venues from around the globe. http://www.iavm.org/
• SESAC is one of three U.S. performing rights organizations that represents songwriters and publishers and their right to be compensated for having their music performed in public. http://www.sesac.com/
• The Society for Electro-Acoustic Music in the United States (SEAMUS) is a non-profit national organization of composers, performers, and teachers of electro-acoustic music. http://www.seamusonline.org/
• Pyrotechnics Guild International (PGI) http://www.pgi.org/

Audio Labor Unions

• National Association of Broadcast Employees and Technicians-Communications Workers of America (NABET-CWA) is a Union devoted to aiding workers employed in the broadcasting, recording, cable, video, sound recording, and related industries in North America. http://www.nabetcwa.org/
• International Alliance of Theatrical Stage Employees (IATSE) LOCAL 695 http://www.695.com/
• The International Brotherhood of Electrical Workers (IBEW) represents approximately 750,000 active members and retirees who work in a wide variety of fields, including utilities, construction, telecommunications, broadcasting, manufacturing, railroads, and government. http://www.ibew.com/index.asp

Standards Organizations

• The American National Standards Institute (ANSI) has served as administrator and coordinator of the United States private sector voluntary standardization system for more than 90 years. It is a private, nonprofit membership organization. http://www.ansi.org/
• International Organization for Standardization (ISO) develops and publishes International Standards. http://www.iso.org/iso/home
• International Electrotechnical Commission (IEC) Standards and Conformity Assessment http://www.iec.ch/index.htm
• Occupational Safety and Health Administration (OSHA) assures safe and healthful working conditions for working men and women by setting and enforcing standards. http://www.osha.gov

Sample Audio Industry Trade Shows

• The DJ Expo 2013 – DJ Times http://djtimes.com/thedjexpo/about/
• InfoComm International is the association representing the commercial audiovisual industry worldwide. http://www.infocommshow.org/indexAtt.asp
• Live Design International (LDI) Show is the leading tradeshow and conference for live design professionals in North and South America. http://ldishow.com/ldi13/Public/enter.aspx               
• NAB Show is a digital media industry event for video, audio, film & communications professionals. http://www.nabshow.com/
• The PAL Show is Canada's leading professional audio, lighting, music, audio visual, systems integration, and entertainment technologies show. http://miac.net/pal.show/pal.show.php
• Prolight + Sound is an international trade fair for the event technology industries, including event service-providers and venue operators, planners, wholesalers and retailers, sound experts, lighting designers, stage designers, and studio technicians. http://pls.messefrankfurt.com/frankfurt/en/aussteller/messeprofil.html
• Tour Link is a yearly convention for touring professionals. http://tourlinkconference.com/
• The annual USITT Conference & Stage Expo, Milwaukee, WI serves the entertainment and theatre industries. http://www.usitt.org/2013   
• Winter Music Conference presents The 28th Annual International Dance Music Awards. http://wintermusicconference.com/events/idmas/
• Worship Facilities Conference and Expo (WFX) is the expo for or all things church related, including Church Sound! http://www.wfxweb.com/

 

Audio Equipment Retailers

Audio Retailers – U.S.

• American Musical Supply (AMS) - http://www.americanmusical.com/
• Audio Link Services - https://www.audiolinks.com
• B&H Photo Video - http://www.bhphotovideo.com
• C2G – (Formerly Cables to Go) - http://www.cablestogo.com/   
• Cheap DJ Gear - http://www.cheapdjgear.us/
• Direct Pro Audio - http://www.directproaudio.com/
• Full Compass - http://www.fullcompass.com
• GearNuts  - http://www.gearnuts.com/
• Gigasonic - http://www.gigasonic.com
• Guitar Center - http://www.guitarcenter.com/
• Jim's Music Center - http://www.jimsmusic.com
• Microphone Solutions - http://www.microphonesolutions.com/
• Mouser Electronics - http://www.mouser.com/
• Music123 - http://www.music123.com/
• Musicians Friend - http://www.musiciansfriend.com
• NY Pro Audio   - http://www.nyproaudio.com/servlet/StoreFront
• Parts-Express - http://www.parts-express.com/
• Pro Acoustics - http://www.proacousticsusa.com/
• Pro Audio Star - http://www.proaudiostar.com
• Pro Audio Toys - http://proaudiotoys.com
• Sam Ash - http://www.samash.com/
• Same Day Music - http://www.samedaymusic.com/
• Sweetwater Pro Audio - http://www.sweetwater.com
• TestEquity - http://www.testequity.com/
• Zzounds - http://www.zzounds.com/

Audio Retailers – U.K.

• C2G (formerly Cables to Go) - http://www.c2g.com/uk/
• Dolphin Music - http://www.dolphinmusic.co.uk/
• Gamlin's Music Centre - http://www.gamlinsmusic.co.uk/
• Prism Sound - http://www.prismsound.com/index.php
• Sabre International - http://www.sabre-international.com/index.html
• SCAN - http://www.scan.co.uk/shop/pro-audio
• Studio Spares - http://www.studiospares.com/page/home/

Used Audio—Retailer Refurbished/Certified

• B&H Photo Video Used Equipment  - http://www.bhphotovideo.com/c/browse/Used-Equipment/ci/2870/N/4294247188
• Direct Pro Audio Used Gear - http://www.secondchanceaudio.com/OLDSITE/?CFID=29440960&CFTOKEN=56767934
• Guitar Center Used Gear - http://used.guitarcenter.com/usedGear/index.cfm
• Live Sound & Lights New and Used Gear Sales - http://www.livesoundandlights.com/
• Music123 Used Gear - http://www.music123.com/used-musical-instruments;jsessionid=ozzrwULQOBBE61iiG0ntMw**.atg33
• Musician's Friend Used Gear - http://www.musiciansfriend.com/used-musical-instruments#tab=search_tab_media   
• Used Gear at Sam Ash Music - http://used.samashmusic.com/
• Used Gear @ Soundpure.com - http://www.soundpure.com/c/budget-studio-gear/20
• Sweetwater Certified Used Gear - http://www.sweetwater.com/dealzone/
• Tek Used Test Equipment - http://www.tek.com/buy/used-test-equipment

Used Audio – By Owner /Classifieds 

• Craigslist Classifieds – Local Classifieds - http://www.craigslist.com/
• Gear by Owner – Used DJ Gear, Pro Audio, Stage Lighting, Musical Instruments - http://www.gearbyowner.com/
• Home Recording – Free Classified Ads for Music Recording Equipment - http://homerecording.com/bbs/special-forums/free-ads-music-recording-equipment/
• Musician's Buy Line – Free Classified Ads - http://www.musiciansbuyline.com/classifieds/
• Sweetwater Trading Post Classifieds - http://tradingpost.sweetwater.com/

Used Gear by Sound Company

• Orbital Sound – Used Gear - http://www.orbitalsound.com/
• Parson's Audio – Used Gear - http://www.paudio.com/gear/used_gear.php
• Pro Sound – Used Equipment Sales - http://www.pro-sound.com/Merchant2/merchant.mvc?Screen=CTGY&Store_Code=&Category_Code=U   
• Sutherland Sight and Sound – Used Gear - http://www.sutherlandsightandsound.com/usedequipment.html
• Thirdearsound - http://www.thirdearsound.com/forsale.html

 

Live Audio and Related Magazines

Live Sound Digital Editions – Audio Engineer

• Audio Media - http://www.audiomedia.com/home
• Audio Pro International – Live Sound - http://www.audioprointernational.com/news/tag/live-sound
• AV Technology Magazine - http://www.avnetwork.com/index
• FOH Online  - http://www.fohonline.com/issue.html
• Gear Hunter – L2PNet.com - http://www.l2pnet.com/gear-hunter
• IQ Magazine – Official Publication of the International Live Music Conference (ILMC) - http://www.ilmc.com/iq_magazine
• Live Sound International – One of the Best Free Online Resources for Live Sound Learners - http://www.livesoundint.com/archives/                 
• LSI – Recent Digital Editions - http://digital.livesoundint.com/publication/?i=141759&p=01
• Mix Magazine - http://www.mixonline.com/
• Mobile Production Pro - http://mobileproductionpro.com/
• Pro Audio Central - http://www.proaudio-central.com/
• Pro Audio Review - http://www.prosoundnetwork.com/article/pro-audio-review-digital-editions/14789
• Pro Sound News - http://www.prosoundnetwork.com/article/pro-sound-news-digital-editions/14788
• Professional Sound – Archive Only - http://professional-sound.com/   
• Sound on Sound - http://www.soundonsound.com/

Live Sound Digital Editions – Church Sound

• Behind the Mixer – Church Sound - http://www.behindthemixer.com/
• Church Production - http://www.churchproduction.com/
• Live 2 Play Worship - http://live2playworship.com/
• Technologies for Worship Magazine - http://www.tfwm.com/

Live Sound Digital Editions – DJ/Karaoke

• DJ Mag & DJ Weekly - http://www.djmag.com/node/38159
• DJ Times - http://djtimes.com/djt/
• Electronic Musician - http://www.emusician.com/index
• The Fader - http://www.thefader.com/
• Karaoke Scene Magazine - http://karaokescene.com/
• Mobile Beat – DJ Magazine - http://www.mobilebeat.com/

Live Sound Digital Editions – Theatre Sound

• Live Design Magazine Home - http://livedesignonline.com/
• Lighting & Sound America  - http://www.lightingandsoundamerica.com/
• Lighting & Sound International - http://www.lsionline.co.uk/digital/
• Stage Directions - http://www.stage-directions.com/

Live Sound Digital Editions – Music/Musicians

• BassPlayer.com - http://www.bassplayer.com
• Billboard - http://www.billboard.com/
• Canadian Musician - http://www.canadianmusician.com
• Computer Music Magazine by Music Radar - http://www.musicradar.com/computermusic
• Down Beat Magazine – The Magazine for Jazz Fans and Musicians - http://www.downbeat.com/
• Future Music Magazine - http://www.musicradar.com/futuremusic
• GuitarPlayer  - http://www.guitarplayer.com/
• Intermixx  - http://www.intermixx.com/
• Keyboard Mag.com - http://www.keyboardmag.com/index
• Modern Drummer - http://www.moderndrummer.com/
• Music Connection - http://musicconnection.com/magazine/current-digital/
• Performer Mag - http://performermag.com/
• Performing Musician - http://www.performing-musician.com/AllIssues.php

Live Sound Digital Editions – Event Production

• BizBash - http://www.bizbash.com/
• Club World - http://www.clubworld.us/
• Entertainment Technology Magazine - http://www.etnow.com/
• Nightclub & Bar  - http://www.nightclub.com
• N & B - http://www.nightclub.com/content/issue-list   
• Total Production International Magazine  - http://www.tpimagazine.com/

Live Sound Digital Editions – Retail & Installation

• MMR Magazine – Musical Merchandise Review - http://www.mmrmagazine.com/
• Music & Sound Retailer Online - http://www.msretailer.com/msr/
• Music Trades - http://www.musictrades.com/index.html
• Sound and Video Contractor - http://www.svconline.com/
• Tape Op - http://www.tapeop.com/issues/

Live Sound Digital Editions – Broadcast Audio

• Broadcast Engineering - http://broadcastengineering.com/
• Radio and Production Magazine - http://www.rapmag.com/

Live Audio Boards & Forums

Manufacturer Forums

• Acoustical Solutions Forums - http://asiforums.com/
• Behringer Forums - http://forum.behringer.com/
• Harmony Central - http://www.harmonycentral.com/t5/Forums/ct-p/Forums
• Mackie Forums - http://www.mackie.com/ubbthreads/ubbthreads.php/
• Motif by Yamaha - http://motifator.com/index.php/forum/ubbthreads.php
• Peavey Forums - http://forums.peavey.com/
• Presonus Forums - http://forums.presonus.com/forums/list.page
• Rane Forums - http://www.rane.com/forum/index.php
• Roland U.S. - http://www.rolandus.com/community/

Retailer Forums

• Sweetwater - http://www.sweetwater.com/forum/
• Parts Express - http://techtalk.parts-express.com/   
• Musician's Friend - http://community.musiciansfriend.com/community/resources
• Zzounds Forums - http://www.studio-central.com/phpbb/index.php

Publisher Forums

• Avid Audio (Pro Tools, Venue) - http://community.avid.com/forums/
• CakeWalk - http://forum.cakewalk.com/default.aspx
• Digital Media Net Forums - http://forums.digitalmedianet.com/cgi-bin/displaysiteindex.fcgi
• Tape Op Magazine Forums - http://messageboard.tapeop.com/
• Pro Sound Web – Live Audio Boards - http://forums.prosoundweb.com/index.php#c1
• Pro Sound Web Recording - http://repforums.prosoundweb.com/
• FOH and Pro Audio Space Forums - http://www.proaudiospace.com/forum
• Sound on Sound - http://www.soundonsound.com/forum
• Mixer Man's Forums - http://www.thewombforums.com/index.php
• EQ Mag Forums - http://forums.musicplayer.com/ubbthreads.php/category/3/EQ_Magazine_Forums

Gear Forums 

• eCoustics Forums – Commercial Audio Reviews - http://www.ecoustics.com/electronics/forum/board-topics.html
• The Gear Page Forums - http://www.thegearpage.net/board/index.php
• Gearslutz Forums  - http://www.gearslutz.com/board/

DJ/Electronic Music Forums

• DJ Forums - http://www.djchat.com/forum.php
• Future Producers Forums - http://www.futureproducers.com/forums/
• Karaoke Scene's Karaoke Forums - http://karaokescene.com/forums/
• Mobile Beat - http://start.mobilebeat.com/forum.php
• Rane DJ - http://dj.rane.com/community
• Stanton - http://forum.gibson.com/index.php?/forum/112-stanton/

Theater & Event Production Forums

• Control Booth Forums - http://www.controlbooth.com/forums/
• Blue Room Forums - http://www.blue-room.org.uk/

Pro Audio Recording Forums

• American Recorder Forums - https://www.americanrecorder.com/page.php?id=12.com/forums/
• Recording.org  - http://recording.org/forum.php?s=f0520e2ef7bc8496217e08ca470f9144
• Recording Web - http://www.recordingwebsite.com/
• Home Recording Forums  - http://homerecording.com/bbs/forum.php
• Recording Review Forums  - http://forum.recordingreview.com/content /

Audiophile Forums

• Audioholics Forums - http://forums.audioholics.com/forums/forum.php
• Audio Circle - http://www.audiocircle.com/index.php
• Audio Fanzine  - http://en.audiofanzine.com/forums /
• Audio Banter Forums - http://www.audiobanter.com/index.php?s=3abc969c8fc851a3358e33d0eb1116ba
• Audio Asylum - http://www.audioasylum.com/
• Audiokarma Home Audio Stereo Forums - http://audiokarma.org/

Misc. Audio Forums

• Hydrogen Audio Forums - http://www.hydrogenaudio.org/forums/index.php?
• Pan Forums - http://forums.pan.com/
• Alt.audio.pro.live-sound - https://groups.google.com/forum/?fromgroups#!forum/alt.audio.pro.live-sound
• Reddit Live Sound  - http://www.reddit.com/r/livesound
• Reddit Audio Engineering - http://www.reddit.com/r/audioengineering
• Church Sound Check Forums - http://www.churchsoundcheck.com/list.html
• Sound Forums.net - http://soundforums.net/hub/category/45-live-sound.html
• Live PA and DJ - http://www.musiciansnetwork.com/
• Rational Acoustics Forums - http://www.rationalacoustics.com/forums/
• Rat Sound Forums - http://ratsound.com/cgi-bin/yabb/YaBB.cgi
• DiyAudio.com - http://www.diyaudio.com/index.php
• Electronics Forums - http://forum.allaboutcircuits.com/

Live Sound Article Repositories

Audio Articles – Manufacturer-hosted Repositories

• Audio Precision – Articles on Audio Testing - http://audioprecision.com/download/whitepapers
• Audio Systems Group, Inc. – Article Index, Assorted Topics - http://www.audiosystemsgroup.com/publish.htm
• Audio Technica – Wireless Articles - http://www.audio-technica.com/cms/site/5821c10324fec931/index.html
• Articles by Bruce Bartlett – Assorted Topics - http://www.bartlettmics.com/articles.html
• Blue Jeans Cable – Index to Articles on Cables/Cabling - http://www.bluejeanscable.com/articles/index.htm
• Cable Organizer Learning Center— Cable Articles and DIY Projects - http://www.cableorganizer.com/learning-center/articles/experts-articles.html
• Crown Audio Knowledge Base – FAQs on Amplification and Microphones - http://crownaudio.com/kb/
• DPA Microphones – Microphone U Articles - http://www.dpamicrophones.com/en/Mic-University.aspx
• Eastern Acoustic Works (EAW) – Technical Articles on Amplifiers and Loudspeakers - http://www.eaw.com/docs/6_Technical_Information/StudyHall_and_TechNotes/
• Eastern Acoustic Works (EAW) – White Papers on Amplifiers and Loudspeakers - http://www.eaw.com/docs/6_Technical_Information/White_Papers/
• Elliott Sound Products – Articles Index, Assorted Topics - http://sound.westhost.com/articles.htm
• Harman – Loudspeaker Whitepapers List - http://www.harman.com/ENUS/OurCompany/Innovation/Pages/WhitePapers.aspx?CategoryID=White%20papers
• Harmony Central – Articles Index, Assorted Topics - http://www.harmonycentral.com/t5/Articles/ct-p/Articles
• JBL Pro Technical Library – Loudspeakers - http://www.jblpro.com/catalog/general/technicallibrary.aspx?CatID=1&Run=1
• Listen, Incn – Audio Testing Articles - http://www.listeninc.com/us/literature.html
• Meyer Sound Lab – Loudspeaker Technical Reports - http://www.meyersound.com/products/technology/
• Moulton Labs – Articles Index, Assorted Topics - http://www.moultonlabs.com/main/
• Peavey Whitepapers & Tech Notes – Assorted Topics - http://www.peavey.com/support/technotes/
• Pro Co Sound – Cable Anatomy 1-3 PDF - http://www.procosound.com/education/99-white-papers
• Rane Notes – Topic Index, Assorted Topics - http://www.rane.com/library.html
• Roland U.S Support Documents – Articles on Mixing & Recording - http://www.rolandus.com/support/support_documents/general
• Shure Americas Training Materials – Articles on Microphones & Wireless - http://www.shure.com/americas/support/training/materials   
• Soundcraft – Mixing Articles - http://www.soundcraft.com/support/white_papers.aspx
• Yorkville – P.A. Basics Primer - http://www.yorkville.com/downloads/other/pabasics.pdf
• Whirlwind USA – Tech Articles - http://whirlwindusa.com/support

Audio Articles – Retailer-hosted Repositories

• Audio Links – Articles Index - https://www.audiolinks.com/ProductReviews.shtml
• Musician's Friend – Articles Index - http://www.musiciansfriend.com/resources/
• Parts-Express – Articles Index - http://www.parts-express.com/resources.cfm
• B&H Photo Video – Articles Index - http://www.bhphotovideo.com/indepth/tips_and_solutions/Audio
• Pro Acoustics USA – Documents Library - http://www.proacousticsusa.com/document_library.php
• Sweetwater Expert Center – Articles Index - http://www.sweetwater.com/expert-center/
• Sweetwater Knowledge Base – Articles Index - http://www.sweetwater.com/sweetcare/knowledge-base
• Tweak Headz Lab by Zzsounds – Articles Index - http://tweakheadz.com/about/

Audio Articles – Educators/School-hosted Repositories

• PAVI – Online Resource Library - http://www.pacificav.com/resourcesD.html
• Signal 2 Noise – Article Archives - http://s2n.org/
• Synergetic Audio Concepts – Topic Index - http://www.synaudcon.com/site/
• SAE – Reference Articles - http://www.sae.edu/reference_material/audio/pages/fullindex.htm
• UCSC Articles Index – Equipment Tutorials  - http://artsites.ucsc.edu/ems/music/equipment/equipment.html   
• UCSC Articles Index – Process Tutorials - http://artsites.ucsc.edu/ems/music/tech_background/tech_background.html
• Wire Bender Audio Systems – Article Index - http://home.comcast.net/~wirebenderaudio/
• Wirebender Audio Systems – Student Resources for Acoustics - http://home.comcast.net/~wirebenderaudio/education/nsc201.htm

Audio Articles – Content Provider (Publisher)-hosted Repositories

• Production Audio – Assorted Articles - http://www.ukslc.org/articles/sound.html
• Delta Tech – Tips and Tricks - http://www.deltamedia.com/resource/techinfo.html
• Electronics Articles from Recording Mag – Assorted Topics - http://www.recordingmag.com/resources/112.html
• Audio FAQ Index – Assorted Topics - http://www.faqs.org/faqs/AudioFAQ/
• Pro Sound Web Study Hall – Recent Articles, Assorted Topics - http://www.prosoundweb.com/studyhall
• Church Sound Check Article List – Assorted Topics - http://churchsoundcheck.com/mag820.html
• Home Recording – Most Recent Articles, Assorted Topics - http://homerecording.com/bbs/content/section/12-articles.html
• Audio Production Tips – Assorted Topics - http://www.audio-production-tips.com/live-sound.html

Audio Articles – Studio/Live Sound co-hosted Repositories

• SCIENCE HOBBYIST – Articles on Electricity - http://amasci.com/ele-edu.html
• Acoustics First – Article Index on Acoustics - http://www.acousticsfirst.com/acoustics-first-articles.htm
• Audio Online – Loudspeaker Articles - http://www.chuckhawks.com/index6_audioonline.htm
• Thorburn Associates – Acoustics Articles Archive - http://www.ta-inc.com/archivearticles.htm
• Thorburn Associates – Acoustics Newsletter Archive - http://www.ta-inc.com/archivenewsletters.htm
• Ethan Winer's – Assorted Articles - http://www.ethanwiner.com/index.htm
• Don Barber Sound – Articles Index, Assorted Topics - http://www.donbarbersound.com/index.php?id=37
• Joe's Technical Article Page – Assorted Topics - http://www.rocketroberts.com/audio.htm
• Johnson Audio Works – Article Index, Assorted Topics - http://www.johnsonaudioworks.com/index.php?option=com_content&view=article&id=52&Itemid=57
• Learn Church Sound – Articles Index, Assorted Topics - http://www.learnchurchsound.com/articles/
• MC Squared — Article Index on Loudspeakers & Acoustics - http://www.mcsquared.com/recommend.htm
• Wiki Audio - http://en.wikiaudio.org/Main_Page
• Sound Forums - http://soundforums.net/hub/section/113-articles-page2.html

Online Calculators

Standardized Measurement Tools

• SI Units of Measurement PDF - http://drewdaniels.com/SI.pdf
• SI Units of Measurement - http://www.unc.edu/%7Erowlett/units/
• Engineering Toolbox – SI Unit Basics - http://www.engineeringtoolbox.com/si-units-engineering-t_19.html
• Unit Converter – Online Measure Conversions - http://www.searates.com/reference/unit/
• Unit Conversion – Online Unit Converter - http://www.unitconversion.org/
• Online Conversion – Convert Just About Anything to Anything Else - http://www.onlineconversion.com/

Scientific Calculators

• Using a Scientific Calculator – S4C - http://www.school-for-champions.com/science/calculations/using_calculator.htm
• Online Scientific Calculator – EEWeb  - http://www.eeweb.com/toolbox/calculator

Wavelength Calculators

• Wavelength Calculator  - http://www.oeler.com/calculators/wavelength_calculator.html
• Wavelength Calculator - http://www.mcsquared.com/wavelength.htm
• Wavelength Frequency Converts Lambda Hz Sound Conversion - http://www.sengpielaudio.com/calculator-wavelength.htm
• Pitch-Frequency-Wavelength XLS - http://drewdaniels.com/freq.xls
• Pitch-Frequency-Wavelength PDF - http://drewdaniels.com/FREQ.pdf

Velocity Calculators

• Hyper Phiz Velocity Calculator - http://hyperphysics.phy-astr.gsu.edu/hbase/sound/souspe.html
• Speed of Sound in Air Calculator Prop - http://www.sengpielaudio.com/calculator-speedsound.htm
• Speed of Sound - http://www.grc.nasa.gov/WWW/K-12/airplane/sound.html

Frequency Charts & Calculators

• Frequency to Musical Note Converter - http://www.phys.unsw.edu.au/music/note/
• Note-To-Frequency Conversion - http://www.barryrudolph.com/greg/note1.html
• Frequency Chart - http://www.har-bal.com/product-information/frequency-chart
• Musical Instrument Sound Chart - http://www.rfcafe.com/references/electronics-world/musical-instrument-sound-chart-aug-1967-electronics-world.htm
• Guitar-Vocal Frequency Chart - http://www.karensavoca.com/pdf/freq-chart.2.pdf
• General Acoustics Frequency dB - http://www.listenhear.co.uk/general_acoustics.htm
• ZYTRAX Acoustic Calculators—Musical Note & Octave Bandwidth - http://www.zytrax.com/tech/audio/calculator.html#note
• Convert 3rd Octave DIL to Full Octave DIL XLS - http://www.oeler.com/calculators/Convert3rdOctaveDll.html

Calculate SPL

• Decibel Calculators  - http://www.mcsquared.com/dbframe.htm
• Calculate SPL, SPL Addition, and Air Absorption - http://www.doctorproaudio.com/doctor/calculadores_en.htm#calc_spl
• dBA Calculator - http://www.oeler.com/calculators/dBA_Calculator.html
• Seng Audio – Sound Loudness/Volume  - http://www.sengpielaudio.com/calculator-levelchange.htm
• Table of Sound Pressure Levels - http://www.sengpielaudio.com/TableOfSoundPressureLevels.htm

Acoustic Measurements

• Interactive Reverberation Tool - http://www.armstrong.com/commceilingsna/article21088.html
• Reverb Time Calculator - http://www.sae.edu/reference_material/audio/pages/Reverberation%20Time%20Calculator.htm#cal
• Critical Distance Calculator - http://www.mcsquared.com/critical.htm
• Room Mode Calculator - http://www.oeler.com/calculators/room_mode_calc.html
• Room Mode Fundamental Frequency Calculation - http://www.sae.edu/reference_material/audio/pages/Roomodes.htm#standing
• Air Loss Estimator - http://www.electrovoice.com/airloss.php
• Table of Absorption Coefficients - http://www.oeler.com/calculators/absorption_coefficients.html
• The Speech Intelligibility Calculator - http://www.mcsquared.com/ssdesign.htm
• Target Curve Calculator - http://www.ohl.to/calculators/targetcurve.php
• Attenuation Over Distance From Sound Source - http://www.trinitysoundcompany.com/inversesquarelaw.html
• Acoustics Testing Calculators (Note Beam Spread Calculator) - http://www.ndt-ed.org/GeneralResources/Calculator/calculator.htm

Converting Between Units of Power/Pressure

• Ohm's Law Calculators - http://www.the12volt.com/ohm/ohmslawcalculators.asp#power
• Power Converter@ The Calculator Site - http://www.thecalculatorsite.com/conversions/power.php
• Decibel-milliwatt (dBm) Definition, Calculator & How to Convert - http://www.rapidtables.com/electric/dBm.htm                  
• dB Converter (VRMS/dBm/dBu/dBV calculator) -http://designtools.analog.com/dt/dbconvert/dbconvert.html

Measuring Power in the P.A.

• Loudspeaker Efficiency - http://www.sengpielaudio.com/calculator-efficiency.htm
• Required Electrical Power to Produce a Desired SPL - http://www.trinitysoundcompany.com/amppowerrequired.html
• Self-Noise Calculation  - http://www.oeler.com/calculators/self_noise_calc.html
• Multiple Speaker, Crossover, Wire Calculators - http://www.mh-audio.nl/spk_calc.asp

Measuring Interference

• Standing Wave Calculator - http://www.hunecke.de/en/calculators/room-eigenmodes.html
• Quarter/Half Wavelength Cancellation Frequency - http://www.mh-audio.nl/CancellationFreq.asp

Measuring Power in the Pipes

• Loudspeaker Time Delay Tables - http://www.gbaudio.co.uk/data/time.htm#GB
• American Wire Gauge Table and AWG Electrical Current Load Limits  - http://www.powerstream.com/Wire_Size.htm
• Calculating the Treble Cutoff Frequency of a Cable - http://www.mh-audio.nl/calculate-cable.asp
• American Wire Gauge (AWG) Cable Conductor Size Chart Table  - http://diyaudioprojects.com/Technical/American-Wire-Gauge/
• Wire Capacity Chart - http://www.rowand.net/Shop/Tech/WireCapacityChart.htm
• Electro-Voice Cable Loss Calculator - http://www.electrovoice.com/cableloss.php

RF Tools for Wireless P.A. Equipment

• Electro-Voice Frequency Band Estimator - http://www.electrovoice.com/fbs.php
• AKG Acoustics - http://www.akgfrequency.at/farnear/
• Shure Americas - http://www.shure.com/americas/support/tools/wireless-frequency-finder/index.htm
• Sennheiser USA frequency Finders - http://12.148.18.149/

Multipurpose Measurements

• Online Calculators for Engineers  - http://www.calculatoredge.com/index.htm#finance
• Online Calculators for Engineers  - http://www.csgnetwork.com/converters.html
• Engineering Calculators & Converter Applet & Spreadsheet Websites – RF Café - http://www.rfcafe.com/references/calculators.htm
• Online Calculators for Engineers - http://www.engineeringtoolbox.com/index.html
• Sengpiel Audio Calculators Index - http://www.sengpielaudio.com/Calculations03.htm
• 101 Calculations Page - http://www.101science.com/101_calculations_page.htm

P.A. Audio Testing

Test Tool Tutorials

• Real Traps – Using SPL Meters - http://www.realtraps.com/art_spl.htm
• What Can a Multi-Meter Do? - http://www.instructables.com/id/EVERYONE-Needs-a-Multi-Meter/step2/So-what-can-a-
• Multi-meter – Digital Multimeter Flash Tutorial - http://slc.umd.umich.edu/slconline/IDIG/DigiMeter.htm
• Interactive – Using a Multimeter - http://www.doctronics.co.uk/meter.htm
• How-to-use-a-multimeter - http://www.familyhandyman.com/DIY-Projects/Electrical/Electrical-Tools/how-to-use-a-multimeter/View-All   
• Interactive – Using an Oscilloscope - http://www.doctronics.co.uk/scope.htm
• Oscilloscope – Tutorials - http://www.tek.com/learning/oscilloscope-tutorial
• Signal-generator – Tutorials - http://www.tek.com/learning/signal-generator-tutorial
• Digital-multimeter – Tutorials - http://www.tek.com/learning/digital-multimeter-tutorial
• Spectrum-analyzer – Tutorials - http://www.tek.com/learning/spectrum-analyzer-tutorial
• Tek TV – Test Equipment Video Tutorials - http://www.tek.com/tektv
• Brüel & Kjær Primers – Sound and vibration testing - http://www.bksv.com/Library/Primers.aspx
• Sound Testing Training Webinars - http://www.bksv.com/Courses/Webinars.aspx

Audio Testing Topic Articles

• What is Pink Noise Used for in Audio Testing? -http://www.learningaboutelectronics.com/Articles/What-is-pink-noise-used-for-in-an-audio-lab
• What is White Noise Used for in Audio Testing? - http://www.learningaboutelectronics.com/Articles/What-is-white-noise-used-for-in-an-audio-lab
• When Measuring SPL, Distance from Sound Source and Filter Weight Are Key to Accuracy - http://www.fohonline.com/current-issue/28-theory-and-practice/2157-so-just-how-loud-is-it.html
• AB Testing, a Misapplication of Visual Criteria in Audio - http://www.anstendig.org/ABTesting.html
• 3 Noise Measurement Tools - http://www.osha.gov/dts/osta/otm/noise/exposure/instrumentation.html
• Outboard Audio Synergetic Audio Concepts Tips - http://www.synaudcon.com/site/author/pat-brown/outboard-audio/
• Audio Ghost Busting With Synergetic Audio Concepts - http://www.synaudcon.com/site/articles/audio-ghostbusting/
• What Is SMAART? - http://www.rationalacoustics.com/smaart/about-smaart/
• Q Box – Cable Tester - http://whirlwindusa.com/support/tech-articles/basics-troubleshooting-sound-systems/

Miscellaneous Online Audio Test Resources

• Electronics Test and Measurement  - http://www.radio-electronics.com/info/t_and_m/
• Noise Colors—Listen & Learn - http://www.mediacollege.com/audio/noise/
• The eTesters Test Device Search Tool - http://www.etesters.com/
• Online Tone Generator - http://www.testsounds.com/
• Online Tone Generator - http://onlinetonegenerator.com/
• Online Blind Listening Tests, Test Tones and Sound Test Files - http://www.audiocheck.net/
• CSC Audio Test Signals - http://www.churchsoundcheck.com/csc-test-signals.html
• Shure Americas Noise Identifier - http://www.shure.com/americas/support/tools/noise-identifier/index.htm
• Common Acoustical and Sound System Problems - http://www.mcsquared.com/problems.htm
• Audio Check - http://www.audiocheck.net/blindtests_index.php
• Listen to Fourier Series - http://www.jhu.edu/signals/listen-new/listen-newindex.htm
• Spectrum Chart - http://www.adec.edu/tag/spectrum.html

Free Audio Test Tools – Software Downloads

• E.A.R:  Evaluation of Acoustics using Ray-tracing - https://github.com/aothms/ear
• E.A.R: Ray Tracing Demo - http://explauralisation.org/example1/
• Room EQ Wizard - http://www.hometheatershack.com/roomeq/
• Room EQ Wizard Demo - http://www.youtube.com/watch?feature=player_embedded&v=e4uSR3cUUSY
• Audio Test Bench - http://www.higherfi.com/software.htm
• Sweep Generator, Weather Satellite Recording Level Meter, Tone Burst Generator, Vector Scope. - http://www.satsignal.eu/software/audio.html     
• Soundcard Audio Tools and Test Toys - http://www.techmind.org/audio/

P.A. Care & Maintenance

• PDF on Microphone Maintenance - http://www.neumann.com/download.php?download=info0067.PDF
• Tape Recorder Maintenance Tips - http://www.bobbynathan.com/key16.htm
• An Ounce of Prevention - http://www.recordingmag.com/resources/resourceDetail/142.html
• Things Fall Apart – Why Components Fail - http://www.recordingmag.com/resources/resourceDetail/144.html
• What  You Should Have in Your Toolbox - http://www.recordingmag.com/resources/resourceDetail/222.html
• The 1 Minute Cable Manager - http://www.recordingmag.com/resources/resourceDetail/143.html
• AC Power Handling - http://www.recorsingmag.com/resources/resourceDetail/139.html
• Don't be a Victim – Damage and Theft Prevention Tips - http://www.blamepro.com/mwn/tips/theft.asp
• FOH Online – Winter Gear Maintenance Tips - http://www.fohonline.com/current-issue/28-theory-and-practice/8219-winter-gear-maintenance-tips.html
• Live Sound Care & Feeding – Keeping Gear In Top-Flight Shape - http://www.prosoundweb.com/article/care_feeding/
• Equipment Cleaning - http://www.gcaudio.com/resources/howtos/eqptcleaning.html
• Improve your System (Almost!) For Free - http://www.gcaudio.com/resources/howtos/howto.html
• Record Cleaning – Turntable Maintenance Starts With Vinyl Care - http://www.gcaudio.com/resources/howtos/recordcleaning.html
• Vacuum – Record Player Cleaning - http://www.gcaudio.com/resources/howtos/vacuum.html
• Cord Covers  – Wire Management - http://www.cableorganizer.com/
• Cleaning the Faders - http://www.youtube.com/watch?v=W1MhcgquBDU
• Rack Gear Thermal Management – Keep Cool and Avoid a Sticky Situation - http://middleatlantic.com/pdf/ThermalManagement.pdf
• Cable Care - http://procablesnsound.com/page_52.asp
• Illustrated Guide to Speaker Care  - http://www.mcsquared.com/captrock.htm

P.A. Documentation

Manufacturer Directories

• Pro Audio Glossary –Thousands of Pro Audio Items Listed by Type/Model/Make - http://www.proaudioglossary.com/
• Gearnuts Help Center – Manufacturer Phone Numbers - http://www.gearnuts.com/help/service-support.php#1
• B&H Photo Video – Manufacturer Phone Numbers - http://www.bhphotovideo.com/find/manufacturerPhoneDirectory.jsp
• Direct Pro Audio - http://www.directproaudio.com/shop/brands.cfm
• Inner Fidelity  – Headphone Manufacturer Links - http://www.innerfidelity.com/links-4   
• Sam Ash Music - http://www.samash.com/opencms/opencms/samash/footer/DealerLinks.jsp

Manufacturer Product Documentation

• Behringer  – Locating Owner Manuals - http://music-group.force.com/PKB/articles/en_US/FAQ/Where-do-I-find-an-owner-s-manual-for-my-BEHRINGER-or-Bugera-product/
• Crown Audio – Products Library - http://www.crownaudio.com/express.htm
• EAW – Documents Site - http://www.eaw.com/docs/
• Electro Voice – Manuals - http://www.electrovoice.com/downloads.php?type=Manual
• JBL Pro Technical File Library  – User Guides & Specifications - http://www.jblpro.com/catalog/general/technicallibrary.aspx
• JBL Pro – Discontinued Product Information - http://www.jblpro.com/pages/obsolete.htm
• M-Audio – Documentation Downloads - http://m-audio.com/index.php?do=support&tab=manuals
• QSC – Manuals - http://www.qscaudio.com/
• Roland US – Owners Manuals - http://www.rolandus.com/support/owners_manuals/
• Shure – Product User Guides Index - http://www.shure.com/americas/support/user-guides
• Yamaha Pro Audio – Documents Library - http://www.yamahaproaudio.com/global/en/downloads/
• Yorkville – Product Documents - http://yorkville.com/resources/product_documents

Manuals & Product Documentation – Other

• MC 2-Audio – Product Manuals - http://www.mc2-audio.co.uk/documents.html
• American Musical Supply – Product Manuals - http://www.americanmusical.com/ItemFiles–id-
• Full Compass Manufacturer Search - http://www.fullcompass.com/brands_show_all.php
• Audio Schematics – Audio Equipment Manuals and Schematics - http://www.audioschematics.com/
• Analog Rules – Free Audio Schematics and Manuals - http://www.analogrules.com/manual_list.html
• Device Manuals – Device Categories - http://www.devicemanuals.com/devicecategory.php
• Eddie Ciletti's Schematics Index - http://www.tangible-technology.com/schematics/index.html
• GB Audio – Dr. Know's A-Z Data Sheet Index  - http://www.gbaudio.co.uk/data/index.htm#GB
• Data Sheet Archive - http://www.datasheetarchive.com/
• Diplodocs – Find Your Manual or Guide - http://safemanuals.com/
• 911 Manuals - http://911manuals.com/index.php
• FLOSS Manuals (en) - http://www.flossmanuals.net/
• Mackie Tech Support - http://www.mackie.com/support/downloads/discontinued.html
• Missing Manuals - http://missingmanuals.com/
• Manual Manor - http://www.markglinsky.com/ManualManor.html
• Supreme Pro Audio – Operating Manuals - http://www.supremeaudio.com/cgi-bin/lib/shop-wrapper.pl?
• Pro Audio Docs – Equipment Manuals - http://www.one-electron.com/FC_ProAudio.html
• Retrevo – Pro Audio Manuals - http://www.retrevo.com/samples/Audio-Pro-manuals.html
• PDF Manuals - http://www.manuals-in-pdf.com/
• ProSound, Inc.– Schematics - http://www.prosound.com/repair/schematics
• Sony Service Manual - http://www.servicemanuals.net/(1oodhbreraz3mk55gbosl455)/default.aspx
• SchematicsForFree.com - http://www.schematicsforfree.com/
• Service Manuals – On-Line Manual Download - http://911manuals.com/index.php
• The Technician's Filing Cabinet - http://www.one-electron.com/filing_cab.html
• Users Guide – Manuals & Operation Instruction - http://www.usersmanualguide.com/
• Free User Manuals – PDF Guides - http://www.mikecooperdesign.com/     

Understanding Specifications — Articles & Guides

• Audio Specifications - http://www.rane.com/note145.html
• How to Write and Read Audio Specs - http://ap.com/download/file/472
• “Noise and Stuff in Consoles” – More about Specifications - http://www.peavey.com/support/technotes/mixers/noise_consoles.cfm
• Guide to Understanding Audio Specifications and Hardware - http://www.techpowerup.com/forums/showthread.php?t=64921
• DPA Microphones – How to Read Microphone Specifications - http://www.dpamicrophones.com/en/Mic-University/Technology-Guide/How-to-read-microphone-specifications.aspx
• Loudspeaker Specifications Explained  - http://www.hifipage.com/loudspeaker-specifications-explained-11/
• Understanding Amplifier Power Specifications - http://www.rayfes.com/caraudio/ampspec.php
• Understanding Power Amplifier Power Ratings - http://www.rocketroberts.com/techart/powerart_a.htm
• Wire World – HDMI Explained - http://www.wireworldcable.com/products/8.html
• The Naked Truth about Speaker Cables - http://www.tnt-audio.com/clinica/spkcbl_e.html

P.A. Troubleshooting

General Troubleshooting

• Troubleshooting Chapter – Great Example of the Fundamental Method - http://www.allaboutcircuits.com/vol_5/chpt_8/index.html
• The Basic Trouble Shooting Process - http://www.barryrudolph.com/greg/trouble.html
• Maintenance World – Electrical Troubleshooting in Seven Steps - http://web.archive.org/web/20060212015813/http://www.maintenanceworld.com/Articles/pdma/Electrical-Troubleshooting.htm
• Troubleshooting a Noisy P.A. System - http://www.guitarojam.com/Members/NL05Jun06Gig.htm
• Ground Loop Problems and How to Get Rid of Them - http://www.epanorama.net/documents/groundloop/
• Troubleshooting P.A. Systems - http://ntccmusic.com/?p=248
• Troubling Shooting Live Audio Disasters on the Fly - http://www.eclecticarecordings.com/ps1.htm
• Radio Frequency Interference (RFI) Problems in Your Sound System - http://www.prosoundweb.com/article/troubleshooting_radio_frequency_interference_rfi_problems_in_your_sound_sys/
• Digital First Aid - http://www.digitalprosound.com/Htm/TechStuff/2000/Aug/FirstAid1.htm
• Why Gaffers' Tape Rules the World - http://www.recordingmag.com/resources/resourceDetail/141.html

Troubleshooting P.A. Equipment

• Cable Troubleshooter - http://www.procosound.com/education/98-cable-troubleshooter
• Troubleshooting Mic Problems in Sound Reinforcement - http://www.crownaudio.com/mictrouble.htm
• Why Won't My Mic Work? - http://blog.shure.com/shure-notes/why-wont-my-mic-work/
• Mixer Troubleshooting Checklist - http://www.indiana.edu/~emusic/mxrtrbl.html
• Troubleshooting Speaker Trouble - http://www.krksys.com/krk-trouble-shooting.html
• System Maintenance & Speaker Repair Church Audio Blog - http://churchaudio.blogspot.com/2011/04/system-maintenance-speaker-repair.html
• Soundcraft Delta 32 Mixer Console Repair Service Noise Gain - http://www.youtube.com/watch?v=R_5QvAUkA4A
• Audio Interface Troubleshooting Guide - http://www.mackie.com/support/documents/Tech_FAQ_no.1.pdf

Troubleshooting Tools

• IFixit.org Repair is Noble - http://ifixit.org/