Series: Apocalypse
| Model | DB-4518 D2 / DB-4518 D1 |
| Type | Subwoofer |
| Size | 18 inch |
| Voice coil size | 4,50 inch |
| Cone | Carbon |
| Magnet | Ferrite |
| Voice coil wire | None |
| Surround | Foam |
| RMS Power | 4000 W |
| MAX Power | 8000 W |
| Frame | Alu |
| Impedance | 2+2 / 1+1 Ohm |
| SPL | 89,00 / 88,90 dB |
| Fs | 29,40 / 29,00 Hz |
| Qts | 0,34 / 0,33 |
| BL | 28,00 / 26,40 |
| Vas | 153,00 / 149,00 L |
| Xmeh | 45,00 / 45,00 mm |
| Xmax | 22,50 / 22,50 mm |
| Mounting depth | 12,87 inch (327,0 mm) |
| Cut-out dimension | 18,20 inch (462,3 mm) |
