| 5 Star Products | | Sells karaoke products such as DVD and CDG players, amplifiers, microphones and music. |
| A-M Audio | | Specializes in wireless speaker systems, MP3 watches, and data storage. |
| Acorn Designs | | Offers a variety of theater and concert sound products. |
| Acoustic Image | | Tube and analog specialists, carry turntables, arms, cartridges and cables. |
| Actino | | Offers personal audio such as MP3, CD players, mini discs, and radio. |
| Add a cd changer | | Offers CD, MP3 and mini disc chargers for cars and portable devices and accessories. |
| Adler Audio | | Offers performance parts, radar detectors, home audio, dj equipment and car audio. |
| Ampslab | | Designs and sells power amplifier kits up to 600 watts for hi-fi, home theater and pro-audio. |
| AmrMart | | Offers audio and video products such as loudspeakers, MP3 players, and accessories. |
| Anchor Audio Club | | Sells Anchor Audio sound systems, portable sound systems, and P.A. systems. |
| Audio Advisor | | Offer audio components and information for audiophiles. |
| Audio Buys | | Sells home theater systems, stereos, car audio, turntables, cd players, novelty radios, speakers, audio stands and audio accessories. |
| Audio d'occasion | | Store that sells new and used low-end to high-end components. Based in Canada. |
| Audio Direct | | Car and home audio, and home video equipment. Ships in North America. |
| Audio Limits | | New and used high-end audio products such as tube and power amplifiers, loudspeakers and analog products. |
| Audio Note Singapore | | Distributor of audio products such as amplifiers, home theater audio, tonearms, turntables. |
| Audio Oasis | | Audio store specializing in vintage tube and solid state audio components. |
| Audio Pro Class-d | | Offers professional speakers, amplifiers, mixing desks, musical instruments, and disco systems. |
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