BMS 12S330
Subwoofer
12″ / 318 mm
Nominal diameter
29 Hz
Resonance
0.24
Q factor
91 dB
Sensitivity
± 8 mm
Linear excursion
1200 W
Program Power
![BMS 12S330 Subwoofer](/BMS/12S330/BMS_12S330_(Photo).jpg)
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 90.6
- dB
- Frequency response
- 25 - 300
- Hz
- Resonance frequency (free air)
- fS
- 28.6
- Hz
- Mechanical quality factor
- QMS
- 5.90
- Electrical quality factor
- QES
- 0.25
- Total quality factor
- QTS
- 0.24
- Maximum linear excursion
- xmax
- 8.0
- mm
- Air volume displaced at xmax
- VD
- 398
- cm³
- Power handling
- P
- 600
- W
- Program power
- Pmax
- 1200
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.0
- Ω
- Inductance (1kHz)
- LE
- 0.7
- mH
- VC Diameter
- 77
- mm
- Winding height
- HVC
- 26
- mm
- Winding material
- Copper
- Force factor
- Bl
- 23.0
- N/A
- Motor constant
- Bl/√RE
- 9.39
- N/√W
- Air gap height
- HAG
- 10
- mm
- Material
- Ferrite
- Effective diameter
- 252
- mm
- Effective area
- SD
- 498
- cm²
- Moving mass
- MMS
- 127
- g
- Moving mass (without air load)
- MMD
- 118.8
- g
- Stiffness
- KMS
- 4.17
- N/mm
- Compliance
- CMS
- 240
- µm/N
- Equivalent volume to the compliance
- VAS
- 85.5
- L
- Mechanical resistance
- RMS
- 3.87
- N·s/m
- Nominal diameter
- 12
- ″
- 318
- mm
- Overall diameter
- 318
- mm
- Baffle cutout diameter
- 284
- mm
- Overall depth
- 171
- mm
- Volume occupied by the driver (estimated)
- 4.0
- L
- Net weight
- 9.4
- kg
- Frame material
- Cast Aluminum
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
![BMS 12S330 Impedance](/BMS/12S330/BMS_12S330_(Impedance).png)
![BMS 12S330 SPL & Distortion](/BMS/12S330/BMS_12S330_(Frequency_response_+_Distortion).png)
![BMS 12S330 Dimensions](/BMS/12S330/BMS_12S330_(Dimensions).png)
Export this driver to a simulation software:
![WinISD](/images/export/WinISD.png)
![Basta!](/images/export/Basta.png)
![Hornresp](/images/export/Hornresp.png)
![QSpeakers](/images/export/QSpeakers.png)
![SpeakerSim](/images/export/SpeakerSim.png)
![MfbLabs](/images/export/MfbLabs.png)
![Speakerbench](/images/export/Speakerbench.png)