MD Lab SW-ES12
Subwoofer
12″ / 314 mm
Nominal diameter
30 Hz
Resonance
0.65
Q factor
85 dB
Sensitivity
400 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 85.3
- dB
- Resonance frequency (free air)
- fS
- 30.4
- Hz
- Mechanical quality factor
- QMS
- 2.02
- Electrical quality factor
- QES
- 0.95
- Total quality factor
- QTS
- 0.65
- Power handling
- P
- 200
- W
- Program power
- Pmax
- 400
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.8
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.98
- mH
- Force factor
- Bl
- 9.63
- N/A
- Motor constant
- Bl/√RE
- 4.94
- N/√W
- Effective diameter
- 250
- mm
- Effective area
- SD
- 491
- cm²
- Moving mass
- MMS
- 121.3
- g
- Moving mass (without air load)
- MMD
- 113.3
- g
- Stiffness
- KMS
- 4.43
- N/mm
- Compliance
- CMS
- 226
- µm/N
- Equivalent volume to the compliance
- VAS
- 77.4
- L
- Mechanical resistance
- RMS
- 11.48
- N·s/m
- Nominal diameter
- 12
- ″
- 314
- mm
- Overall diameter
- 314
- mm
- Baffle cutout diameter
- 283
- mm
- Overall depth
- 102
- mm
- Flange thickness
- 30
- mm
- Mounting depth
- 72
- mm
- Volume occupied by the driver (estimated)
- 1.6
- L
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