| Business | Phone |
| Atlantic Stereo Home Entrtn 445 E 17th St # A, Costa Mesa 92627 | (949) 646-8895 |
| Audio-Video Engineering 192 22nd St, Costa Mesa 92627 | (949) 646-8877 |
| Bang & Olufsen 3333 Bristol St # 2873, Costa Mesa 92626 | (714) 751-2300 |
| Digital Audio 887 W 19th St, Costa Mesa 92627 | (949) 764-9270 |
| Electro Tech Svc 973 Grove Pl, Costa Mesa 92627 | (949) 645-3000 |
| Tweeter 1835 Newport Blvd, Costa Mesa 92627 | (949) 722-9200 |
| Ovation 711 W 17th St, Costa Mesa 92627 | (949) 515-7030 |