Eighteen Sound 12NMB420
Woofer
12″ / 300 mm
Nominal diameter
53 Hz
Resonance
0.28
Q factor
101 dB
Sensitivity
± 4 mm
Linear excursion
450 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 101.1
- dB
- Frequency response
- 55 - 6000
- Hz
- Resonance frequency (free air)
- fS
- 53.0
- Hz
- Mechanical quality factor
- QMS
- 3.60
- Electrical quality factor
- QES
- 0.30
- Total quality factor
- QTS
- 0.28
- Maximum linear excursion
- xmax
- 4.0
- mm
- Air volume displaced at xmax
- VD
- 212
- cm³
- Power handling
- P
- 300
- W
- Program power
- Pmax
- 450
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.2
- Ω
- Inductance (1kHz)
- LE
- 0.2
- mH
- VC Diameter
- 65
- mm
- Winding material
- Aluminum
- Force factor
- Bl
- 13.9
- N/A
- Motor constant
- Bl/√RE
- 6.1
- N/√W
- Material
- Neodymium
- Effective diameter
- 260
- mm
- Effective area
- SD
- 531
- cm²
- Moving mass
- MMS
- 33.5
- g
- Moving mass (without air load)
- MMD
- 24.7
- g
- Material
- Weather protected
- Stiffness
- KMS
- 3.72
- N/mm
- Compliance
- CMS
- 269
- µm/N
- Equivalent volume to the compliance
- VAS
- 105
- L
- Mechanical resistance
- RMS
- 3.1
- N·s/m
- Nominal diameter
- 12
- ″
- 300
- mm
- Overall diameter
- 315
- mm
- Baffle cutout diameter
- 282
- mm
- Overall depth
- 127
- mm
- Flange thickness
- 11
- mm
- Mounting depth
- 116
- mm
- Volume occupied by the driver (estimated)
- 1.6
- L
- Net weight
- 3.0
- kg
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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