Milestone 405
| Brand | Altec Lansing, Altec |
| Function | Speaker |
| Produced | 199? |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 23 × 38 × 22 cm (W × H × D) |
| Weight | 5kg |
| Frequency Response | 55Hz-15kHz |
| Driver | 4" Paper Cone (Altec Lansing 405-8H) |
| Sensitivity | 90dB/W/m |
| Impedance (Nominal) | 8Ω |
| Power Handling (AES) | 15W |
| Power Handling (Peak) | 60W |
| Enclosure Type | Bass Reflex |
| MSRP | ¥56,000 |