| Business | Phone |
| K K Audio 12620 Raymer St, North Hollywood 91605 | (818) 765-2921 |
| Schubert Systems Group 7325 Hinds Ave, North Hollywood 91605 | (818) 503-1234 |
| Audio Techniques Inc 10917 Vanowen St, North Hollywood 91605 | (818) 753-8170 |
| Sound Unlimited Systems 7633 Varna Ave, North Hollywood 91605 | (818) 782-3700 |
| Pro Sound Inc 7401 Laurel Canyon Blvd, North Hollywood 91605 | (818) 765-3800 |