BMS 12N820
Woofer
12″ / 318 mm
Nominal diameter
38 Hz
Resonance
0.16
Q factor
97 dB
Sensitivity
± 4.5 mm
Linear excursion
1600 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 96.8
- dB
- Frequency response
- 45 - 1700
- Hz
- Resonance frequency (free air)
- fS
- 37.8
- Hz
- Mechanical quality factor
- QMS
- 5.30
- Electrical quality factor
- QES
- 0.16
- Total quality factor
- QTS
- 0.16
- Maximum linear excursion
- xmax
- 4.5
- mm
- Air volume displaced at xmax
- VD
- 239
- cm³
- Power handling
- P
- 800
- W
- Program power
- Pmax
- 1600
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.7
- Ω
- Inductance (1kHz)
- LE
- 0.62
- mH
- VC Diameter
- 102
- mm
- Winding height
- HVC
- 19
- mm
- Winding material
- Copper
- Force factor
- Bl
- 24.2
- N/A
- Motor constant
- Bl/√RE
- 10.1
- N/√W
- Air gap height
- HAG
- 10
- mm
- Material
- Neodymium
- Effective diameter
- 260
- mm
- Effective area
- SD
- 531
- cm²
- Moving mass
- MMS
- 72
- g
- Moving mass (without air load)
- MMD
- 63.2
- g
- Stiffness
- KMS
- 4.0
- N/mm
- Compliance
- CMS
- 250
- µm/N
- Equivalent volume to the compliance
- VAS
- 98.7
- L
- Mechanical resistance
- RMS
- 3.23
- N·s/m
- Nominal diameter
- 12
- ″
- 318
- mm
- Overall diameter
- 318
- mm
- Baffle cutout diameter
- 284
- mm
- Overall depth
- 155
- mm
- Volume occupied by the driver (estimated)
- 2.7
- L
- Net weight
- 5.5
- kg
- Frame material
- Cast Aluminum
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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