Retro Sound 
Australian distributor of vintage valve (tube) guitar and hi-fi amplifier parts and supplies. Specialists in Fender amp parts and restorations and vintage guitar effects.
http://www.retrosound.com.auDiamond Stylus Co. Ltd.
The original inventors of the diamond stylus offer a most comprehensive range of hi-fi stylus and cartridges.
http://www.diamondstylus.co.uk
US Speaker LLC
Includes brands such as Eminence, Beyma, JBL and Fane.
http://www.usspeaker.com
Parts Express
Online sales of audio, video and speaker building components for home, office, mobile and pro sound.
http://www.partsexpress.com/
Kahwaty Joe DJ Supply
Speaker parts for DJs, bands, sound reinforcement and speaker cabinet designers. A complete line of professional woofers, compression divers, super tweeters, horns and crossovers. Order by telephone, pay by check or money order.
http://www.djentertainment.com/genuine_eminence_loudspeakers.htm
Vintage Speaker Inc.
Sales of new speakers and tubes for vintage amplifiers.
http://www.vintagespeaker.com
Musonic (UK) Limited
Styli, pickup cartridges, and audio accessories. Cross reference, prices, and order information.
http://www.musonic.co.uk/
Appian Acoustics
PA loudspeaker drivers, horns and crossovers for groups, guitars, disco and karaoke. Glasgow.
http://www.loudspeaker.co.uk/
Electron Valve Enterprises, LLC
Vintage tubes and audio components.
http://www.electron-valve.com
Canadian Astatic
Supplier of replacement turntable stylus, turntable cartridges, microphones and turntable belts.
http://www.rmscomanagement.ca/canadianastatic/
Jayson Enterprises, Inc.
Offering subwoofers, speakers, replacement diaphragms, repair parts and recone kits. Includes wholesale information.
http://www.loudspeakersplus.com
