NS-15
| Brand | Yamaha |
| Manufacturer | Nippon Gakki Co. Ltd. |
| Function | Speaker |
| Produced | 1970 |
| Country | Japan |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 42 × 59 × 19 cm (W × H × D) |
| Weight | 10kg |
| Frequency Response | 40Hz-18kHz |
| Treble | 2" Dome/Cone Hybrid (Yamaha JA-0505) |
| Midrange/Bass | 15"x20" Polystyrene (Yamaha JA-3501) |
| Impedance (Nominal) | 8Ω |
| Sensitivity | 98dB/W/m |
| Power Handling | 15W |
| Enclosure Type | Open Baffle |
| Finish | Walnut |