NS-30B
| Brand | Yamaha |
| Manufacturer | Nippon Gakki Co. Ltd. |
| Function | Speaker |
| Produced | 1967 |
| Country | Japan |
| Model ID | NS-30A |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 106 × 79 × 31.5 cm (W × H × D) |
| Weight | 35kg |
| Treble | 5cm Horn-Loaded Dome (Yamaha JA-0503) |
| Midrange | 12" Paper Cone (Yamaha JA-3053) |
| Bass | 25"x35" Polystyrene (Yamaha JA-6002) |
| Impedance (Nominal) | 8Ω |
| Power Handling | 30W |
| Enclosure Type | Open Baffle |
| Finish | Walnut |