Subwoofer Spec Comparison
| Parameter | HDB2 Series Subwoofer 12 Inch | M18 |
|---|---|---|
| General | ||
| RMS Power | — | 2000 W |
| Electromechanical | ||
| Re (DC Resistance) | — | 1.9 Ω |
| Fs (Resonant Frequency) | — | 23.1 Hz |
| Qts (Total Q) | — | 0.4 |
| Qes (Electrical Q) | — | 0.42 |
| Qms (Mechanical Q) | — | 6.79 |
| Physical / Acoustic | ||
| Vas (Eq. Compliance) | — | 157.9 L |
| Xmax (Excursion) | — | 25 mm |
| Mms (Moving Mass) | — | 662.7 g |
| Sd (Cone Area) | — | 1212.1 cm² |
| BL (Force Factor) | — | 31.1 T·m |
| Sensitivity | — | 89.4 dB |
| Cms (Compliance) | — | 0.07 mm/N |
| EBP (Efficiency Bandwidth Product) | — | 55 |
| Ideal Enclosure | — | Flexible (Sealed or Ported) |