Drivers (home and automotive) and in-wall speakers, from Minnesota.

Makes audio cables such as speaker cable, power AC cable and RCA connectors.

Makers of Stones, passive add-ons, and also cable-ware.

Manufacturer of speaker cable and interconnect. Canada.

Manufacturer of portable USB headphone amplifiers and desktop amps for digital and computer audio. Dedicated to headphone amplification.

Manufacturer of loudspeakers. Includes product descriptions, company bulletin, and workshop tour. USA.

Manufacturer of the tube Opus 1 amplifier.

Design and manufacture specialty audio electronics for consumer and professional market.

Manufacturer specialized in speaker drivers, crossovers and amplifiers. Also makes complete loudspeaker systems. Germany. [English, Deutsch, French]

Quebec manufacturer of silver cables, loudspeakers, Jadis tubes electronics, Gryphon transistors electronics.

Makes vinyl cleaning systems and accessories.

Manufacture an affordable mini-monitor sized loudspeaker built with a top mounting tweeter, two bronze and aluminum inverted dome midranges and one bass woofer. USA.

Manufacturer of cone drivers, tweeters, crossovers and flat pannel speaker components. UK.

Manufacturer of complete line of drivers. Provides kits and technical information. Norway.

Manufacturer of microphone, amplifier, mixer, hi-fi, karaoke machine, headphone