Eighteen Sound 12NCX910BE
Coaxial
12″ / 300 mm
Nominal diameter
57 Hz
Resonance
0.3
Q factor
97 dB
Sensitivity
± 6.9 mm
Linear excursion
900 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 96.8
- dB
- Frequency response
- 60 - 4000
- Hz
- Resonance frequency (free air)
- fS
- 57.0
- Hz
- Mechanical quality factor
- QMS
- 10.00
- Electrical quality factor
- QES
- 0.31
- Total quality factor
- QTS
- 0.30
- Maximum linear excursion
- xmax
- 6.9
- mm
- Air volume displaced at xmax
- VD
- 366
- cm³
- Power handling
- P
- 450
- W
- Program power
- Pmax
- 900
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.3
- Ω
- Inductance (1kHz)
- LE
- 0.78
- mH
- VC Diameter
- 75
- mm
- Force factor
- Bl
- 18.1
- N/A
- Motor constant
- Bl/√RE
- 7.86
- N/√W
- Material
- Neodymium
- Effective diameter
- 260
- mm
- Effective area
- SD
- 531
- cm²
- Moving mass
- MMS
- 53
- g
- Moving mass (without air load)
- MMD
- 44.4
- g
- Stiffness
- KMS
- 6.8
- N/mm
- Compliance
- CMS
- 147
- µm/N
- Equivalent volume to the compliance
- VAS
- 58
- L
- Mechanical resistance
- RMS
- 1.9
- N·s/m
- Nominal diameter
- 12
- ″
- 300
- mm
- Overall diameter
- 310
- mm
- Baffle cutout diameter
- 283
- mm
- Overall depth
- 210
- mm
- Flange thickness
- 13
- mm
- Mounting depth
- 197
- mm
- Volume occupied by the driver (estimated)
- 3.4
- L
- Net weight
- 6.0
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
Closed Box Simulator·
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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