Earthquake Subzero-12
2x4Ω
Subwoofer
| Nominal diameter | 12″ / 305 mm |
| Resonance | 26.8 Hz |
| Q factor | 0.42 |
| Sensitivity | 86.5 dB |
| Linear excursion | ± 31.8 mm |
| Program power | 2000 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 86.5dB
Thiele & Small parameters
- Resonance frequency (free air) fS 26.8Hz
- Mechanical quality factor QMS 10.87
- Electrical quality factor QES 0.44
- Total quality factor QTS 0.42
Large signal parameters
- Maximum linear excursion (one way) xmax 31.8mm
- Air volume displaced at xmax VD 1683cm³
- Power handling P 1000W
- Program power Pmax 2000W
Voice Coil
- Nominal impedance Z 2 x 4Ω
- DC resistance (in series) RE 7.7Ω
- Inductance (1kHz, in series) LE 13.5mH
Magnet
- Force factor (in series) Bl 26.8N/A
- Motor constant Bl/√RE 9.64N/√W
- Air gap height HAG 12.7mm
Diaphragm
- Effective diameter 260mm
- Effective area SD 530cm²
- Moving mass (including air load) MMS 244g
- Moving mass MMD 235g
- Material Cone
Suspensions
- Stiffness KMS 6.91N/mm
- Compliance CMS 145µm/N
- Equivalent volume to the compliance VAS 58.1L
- Mechanical resistance RMS 3.77N·s/m
Dimensions
- Nominal diameter 12″
- 305mm
- Baffle cutout diameter 292mm
- Mounting depth 185mm
- Volume occupied by the driver 5.66L
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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