NS-655
| Brand | Yamaha |
| Manufacturer | Nippon Gakki Co. Ltd. |
| Function | Speaker |
| Produced | 1978 |
| Country | Japan |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 29 × 52 × 25.6 cm (W × H × D) |
| Weight | 14kg |
| Frequency Response | 45Hz-20kHz |
| Treble | 3cm Dome |
| Midrange | 6cm Dome |
| Bass | 20cm Cone |
| Sensitivity | 89dB/W/m |
| Impedance (Nominal) | 8Ω |
| Crossover Frequencies | 800Hz, 6kHz |
| Power Handling | 60W |
| Enclosure Type | Sealed |