| Business | Phone |
| Tweeter 350 Boylston St, Boston 2116 | (617) 262-2299 |
| Tweeter 880 Commonwealth Ave, Boston 2215 | (617) 738-4411 |
| Bang & Olufsen Boston 30 Newbury St, Boston 2116 | (617) 262-4949 |
| Listening Studio 123 Stillings, Boston 2111 | (617) 423-4590 |
| Kneeland Electronics 58 Kneeland St, Boston 2111 | (617) 695-0588 |