DM4
| Manufacturer | Bowers & Wilkins |
| Function | Speaker |
| Produced | 1972-1979 |
| Country | United Kingdom |
| Form Factor | Stand Mounted |
| Signal Path | Passive Hardware |
| Dimensions | 254 × 531 × 25.5 cm (W × H × D) |
| Weight | 11.1 kg |
| Frequency Response | 30-25.000 Hz (±2 dB) |
| Impedance | 8 ohms |