SD-120
| Brand | Scan-Dyna |
| Manufacturer | Lydig of Scandinavia A/S |
| Function | Speaker |
| Produced | 1984 |
| Country | Denmark |
| Model ID | SD 120 |
| Form Factor | Bookshelf / Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 32 × 66 × 32 cm (W × H × D) |
| Weight | 12.5kg |
| Frequency Response | 25Hz-22kHz |
| Treble | 2.5cm Soft Dome |
| Midrange | 8.7cm Cone |
| Bass | 21cm Polypropylene Cone |
| Passive Radiator | 25cm |
| Sensitivity (96dB/1m) | 4W |
| Impedance (Nominal) | 8Ω |
| Crossover Frequencies | 1kHz, 3.5kHz |
| Power Handling | 120W |
| Power Handling (Music) | 180W |
| Enclosure Type | Passive Radiator |
| Enclosure Volume | 50l |
| MSRP (1984) | 2165 kr |