MD Lab SW-B12F
4Ω
Subwoofer
| Nominal diameter | 12″ / 310 mm |
| Resonance | 42.8 Hz |
| Q factor | 1.29 |
| Sensitivity | 87.8 dB |
| Program Power | 900 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 87.8dB
Thiele & Small parameters
- Resonance frequency (free air) fS 42.8Hz
- Mechanical quality factor QMS 7.20
- Electrical quality factor QES 1.57
- Total quality factor QTS 1.29
Large signal parameters
- Power handling P 300W
- Program power Pmax 900W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.4Ω
- Inductance (1kHz, estimated) LE 2.12mH
Magnet
- Force factor Bl 9.3N/A
- Motor constant Bl/√RE 5.04N/√W
Diaphragm
- Effective diameter 264mm
- Effective area SD 547cm²
- Moving mass MMS 150g
- Moving mass (without air load) MMD 141g
Suspensions
- Stiffness KMS 11.1N/mm
- Compliance CMS 90µm/N
- Equivalent volume to the compliance VAS 38.2L
- Mechanical resistance RMS 5.6N·s/m
Dimensions
- Nominal diameter 12″
- 310mm
- Overall diameter 310mm
- Baffle cutout diameter 286mm
- Overall depth 171mm
- Flange thickness 12mm
- Mounting depth 159mm
- Volume occupied by the driver (estimated) 3L
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
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Hornresp
QSpeakers
SpeakerSim
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