Series: Apocalypse
| Model | DB-4518R D1 / DB-4518R D2 |
| Type | Subwoofer |
| Size | 18 inch |
| Voice coil size | 4,50 inch |
| Cone | Carbon |
| Magnet | Ferrite |
| Voice coil wire | None |
| Surround | Foam |
| RMS Power | 4500 W |
| MAX Power | 9000 W |
| Frame | Alu |
| Impedance | 1+1 / 2+2 Ohm |
| SPL | 88,90 / 89,00 dB |
| Fs | 29,00 / 29,40 Hz |
| Qts | 0,33 / 0,34 |
| BL | 26,40 / 28,00 |
| Vas | 149,00 / 153,00 L |
| Mounting depth | 12,87 inch (327,0 mm) |
| Cut-out dimension | 18,20 inch (462,3 mm) |
| Gross weight | 143,08 lb (64,90 kg) |
