Links:

Black Audio Devices - Unique and hard-to-find parts, tools, and accessories for pro audio.
Canadian Astatic - Supplier of replacement turntable stylus, turntable cartridges, microphones and turntable belts.
Diamond Stylus Co. Ltd. - The original inventors of the diamond stylus offer a most comprehensive range of hi-fi stylus and cartridges.
Kahwaty Joe DJ Supply - Speaker parts for DJ's, 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.
Logjam Media - Newly manufactured replacements parts and accessories for vintage Neve modules such as the 1073 and 1272.
Lyle Cartridges - Turntables, tonearms, phono cartridges, replacement styli, record cleaning machines, and parts and upgrades for audio equipment.
Parts Express - Online sales of audio, video and speaker building components for home, office, mobile and pro sound.
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.
US Speaker LLC - Online sales of Eminence pro speaker components.
Vintage Speaker Inc. - Sales of new speakers and tubes for vintage amplifiers.