MD Lab SW-B12E
4Ω
Subwoofer
| Nominal diameter | 12″ / 310 mm |
| Resonance | 43.6 Hz |
| Q factor | 0.65 |
| Sensitivity | 87.7 dB |
| Program power | 600 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 87.7dB
Thiele & Small parameters
- Resonance frequency (free air) fS 43.6Hz
- Mechanical quality factor QMS 6.54
- Electrical quality factor QES 0.73
- Total quality factor QTS 0.65
Large signal parameters
- Power handling P 200W
- Program power Pmax 600W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 3.6Ω
- Inductance (1kHz, estimated) LE 2.24mH
Magnet
- Force factor Bl 14.5N/A
- Motor constant Bl/√RE 7.64N/√W
Diaphragm
- Effective diameter 252mm
- Effective area SD 498cm²
- Moving mass (including air load) MMS 150g
- Moving mass MMD 142g
Suspensions
- Stiffness KMS 11.1N/mm
- Compliance CMS 90µm/N
- Equivalent volume to the compliance VAS 31.6L
- Mechanical resistance RMS 6.5N·s/m
Dimensions
- Nominal diameter 12″
- 310mm
- Overall diameter 310mm
- Baffle cutout diameter 279mm
- Overall depth 150mm
- Flange thickness 12mm
- Mounting depth 138mm
- Volume occupied by the driver (estimated) 2.6L
Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
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Hornresp
QSpeakers
SpeakerSim
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