Storm Series
| Model | SST-3015D2 / SST-3015D4 |
| Type | Subwoofer |
| Size | 15 inch |
| Voice coil size | 3.00 inch |
| Cone | Paper |
| Magnet | Ferrite |
| Voice coil wire | Copper |
| Surround | Foam |
| RMS Power | 1200 W |
| MAX Power | 2400 W |
| Frame | Steel |
| Impedance | 2+2 / 4+4 Ohm |
| SPL | 85.00 / 85.00 dB |
| Fs | 42.00 / 42.00 Hz |
| Qts | 0.94 / 1.06 |
| BL | 15.54 / 14.86 |
| Vas | 31.80 / 23.79 L |
| Xmeh | 36.00 / 36.00 mm |
| Xmax | 18.00 / 18.00 mm |
| Mounting depth | 7.34 inch (186.5 mm) |
| Cut-out dimension | 13.88 inch (352.6 mm) |
| Gross weight | 27.34 lb (12.40 kg) |