Ukko (Rev. 3)
| Brand | Rauna of Sweden |
| Function | Speaker |
| Produced | 200?-2008 |
| Country | Sweden |
| Form Factor | Floorstanding |
| Signal Path | Passive Hardware |
| Dimensions | 73 × 191.5 × 20 cm (W × H × D) |
| Weight | 75kg |
| Treble | 4" Paper Cone |
| Midrange | 4" Paper Cone (x4) |
| Bass | 10" Cone (x12) (Sinus 1178) |
| Sensitivity | 95-97dB/W/m |
| Impedance (Nominal) | 5.6Ω |
| Crossover Slope | 12dB/Oct (Second Order) |
| Power Handling | 1000W |
| Enclosure Type | Dipole |
| Enclosure Construction | Constrained Layer: Two Layers Concrete, Seven Layers MDF |
| Finish | Cherry, Birch |