| Brand | Nakamichi |
| Trade name | SP-CS680 |
| Pattern | round |
| Type | speakers 16 cm (from 150 mm to 170 mm) |
| Type acoustic | component |
| Main speaker dimensions | 165 mm |
| Rated power (4 Ohm) | 50 |
| Maximum power | 480 W |
| Impedance | 4 Ohm |
| Sensitivity | 89 dB |
| Frequency range from | 60 Hz |
| Frequency range up to | 20000 Hz |
| Manufacturer | China |
| Price per | set |