Series: Apocalypse
| Model | DB-3515R D2 / DB-3515R D1 |
| Type | Subwoofer |
| Size | 15 inch |
| Voice coil size | 3,50 inch |
| Cone | Carbon |
| Magnet | Ferrite |
| Voice coil wire | None |
| Surround | Foam |
| RMS Power | 3500 W |
| MAX Power | 7000 W |
| Frame | Alu |
| Impedance | 2+2 / 1+1 Ohm |
| SPL | 87,50 / 87,30 dB |
| Fs | 32,30 / 32,00 Hz |
| Qts | 0,39 / 0,38 |
| BL | 27,20 / 23,90 |
| Vas | 69,00 / 68,30 L |
| Xmeh | 45,00 / 45,00 mm |
| Xmax | 22,50 / 22,50 mm |
| Mounting depth | 10,96 inch (278,5 mm) |
| Cut-out dimension | 13,98 inch (355,0 mm) |
| Gross weight | 87,30 lb (39,60 kg) |
