| Business | Phone |
| Analogique Systems Labs Inc 17 W 17th St # 10, New York 10011 | (212) 989-4240 |
| Audio Ace 107 W 106th St, New York 10025 | (212) 665-6500 |
| Audiovision Inc 1221 2nd Ave, New York 10021 | (212) 593-3326 |
| George Kaye Audio Labs Inc 74 Cotton Mill Hill A124, New York 05301 | (802) 257-5085 |
| High-Tech Electronics Labs 35 W 38th St # 3w, New York 10018 | (212) 768-0960 |
| Video Hospital Inc 98 E 12th St, New York 10003 | (212) 777-6325 |
| New A1 Electronics Svc 205 E Broadway, New York 10002 | (212) 420-9573 |