MD Lab SW-A12
Subwoofer
12″ / 315 mm
Nominal diameter
31 Hz
Resonance
0.46
Q factor
86 dB
Sensitivity
800 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 85.9
- dB
- Resonance frequency (free air)
- fS
- 31.3
- Hz
- Mechanical quality factor
- QMS
- 2.13
- Electrical quality factor
- QES
- 0.58
- Total quality factor
- QTS
- 0.46
- Power handling
- P
- 400
- W
- Program power
- Pmax
- 800
- W
- Nominal impedance
- Z
- 2 x 4
- Ω
- DC resistance (in series)
- RE
- 7.2
- Ω
- Inductance (1kHz, in series, estimated)
- LE
- 2.86
- mH
- Force factor (in series)
- Bl
- 24.39
- N/A
- Motor constant
- Bl/√RE
- 9.09
- N/√W
- Effective diameter
- 270
- mm
- Effective area
- SD
- 574
- cm²
- Moving mass
- MMS
- 242.7
- g
- Moving mass (without air load)
- MMD
- 233.2
- g
- Stiffness
- KMS
- 9.43
- N/mm
- Compliance
- CMS
- 106
- µm/N
- Equivalent volume to the compliance
- VAS
- 49.5
- L
- Mechanical resistance
- RMS
- 22.44
- N·s/m
- Nominal diameter
- 12
- ″
- 315
- mm
- Overall diameter
- 315
- mm
- Baffle cutout diameter
- 283
- mm
- Overall depth
- 232
- mm
- Flange thickness
- 29
- mm
- Mounting depth
- 203
- mm
- Volume occupied by the driver (estimated)
- 4.7
- L
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