| Model | M15D2 / M15D4 |
| Type | Subwoofer |
| Size | 15 inch |
| Voice coil size | 2,50 inch |
| Cone | Paper |
| Magnet | Ferrite |
| Voice coil wire | Copper |
| Surround | Foam |
| RMS Power | 350 W |
| MAX Power | 1000 W |
| Frame | Steel |
| Impedance | 2+2 / 4+4 Ohm |
| SPL | 88,28 / 87,38 dB |
| Fs | 34,10 / 33,40 Hz |
| Qts | 0,63 / 0,75 |
| BL | 16,70 / 20,55 |
| Re | 1,4+1,4 / 2,8+2,8 |
| Vas | 75,36 / 78,08 L |
| Xmeh | 28,00 / 28,00 mm |
| Xmax | 14,00 / 14,00 mm |
| Mounting depth | 6,85 inch (174,0 mm) |
| Cut-out dimension | 13,96 inch (354,5 mm) |
| Gross weight | 16,53 lb (7,50 kg) |