| Business | Phone |
| Bang & Olufsen 1198 Broadway Plz, Walnut Creek 94596 | (925) 947-1605 |
| Bose Showcase 1266 Broadway Plz, Walnut Creek 94596 | (925) 287-8922 |
| Future Sound Llc Walnut Creek 94596 | (925) 938-5884 |
| Stereo Unlimited 1545 Locust St, Walnut Creek 94596 | (925) 932-5835 |