Electronics
- 281
- Primare
- Manufacturer of hi-fi and audio and video products such as amplifiers, disc players and tuners.
- 282
- QSound Labs, Inc.
- Develops and licenses sound imaging audio technology used in personal computer, multi-media and home video game industries. (Nasdaq: QSND).
- 283
- Quad.
- British high end audio manufacturers of the ESL electrostatics, pre-power and integrated amps, tuners and cd players. For the serious enthusiast.
- 284
- Quandra Audio
- Manufacturer of home theater equipment such as surround processor amplifier and speakers. Also provides car audio systems.
- 285
- REDGUM Audio
- Australian manufacturer of stereo and home theater amplifiers and pre-amplifiers, tuner, cd players, loudspeaker and accessories.
- 286
- RadioLabs
- Specialize in engineering, design and repair of all RF equipment such as radios, wireless products, electronics accessories and antennas. Offer an online store.
- 287
- Rega Research Limited
- Manufacturer of turntable, tonearms, integrated amplifiers, CD players, tuners, loudspeakers and accessories. UK.
- 289
- Revox
- Swiss manufacturer of wide range of audio equipment, has strived to bring music recording and reproduction close to perfection to suit professional and domestic applications since 1948.
- 290
- Roksan
- UK. Manufacturer of audiophile components, including amps, cd players, loudspeakers, and tuners, as separates or complete systems.
- 293
- Royal Device
- Manufacturer and designer of large high-end loudspeaker, devices and amplifiers. Italy.
- 294
- Russound website
- Manufacturers of consumer audio components for single and multi room applications.
- 295
- SAC Thailand
- Home of Lowther loudspeaker, horn, tube amplifier. Upgrade parts, vacuum tubes and other parts.
- 296
- SJS Electroacoustics
- British builder of amp components for the DIY enthusiast, as well as custom built amps.