Ciare NDH18-4S
4Ω
8Ω
Subwoofer
18″ / 450 mm
Nominal diameter
31 Hz
Resonance
0.32
Q factor
94 dB
Sensitivity
± 11.5 mm
Linear excursion
2000 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 94.4
- dB
- Resonance frequency (free air)
- fS
- 31.0
- Hz
- Mechanical quality factor
- QMS
- 9.80
- Electrical quality factor
- QES
- 0.33
- Total quality factor
- QTS
- 0.32
- Maximum linear excursion
- xmax
- 11.5
- mm
- Air volume displaced at xmax
- VD
- 1339
- cm³
- Power handling
- P
- 1000
- W
- Program power
- Pmax
- 2000
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.1
- Ω
- Inductance (1kHz)
- LE
- 1.9
- mH
- VC Diameter
- 100
- mm
- Winding height
- HVC
- 30
- mm
- Force factor
- Bl
- 27.7
- N/A
- Motor constant
- Bl/√RE
- 11.2
- N/√W
- Air gap height
- HAG
- 14
- mm
- Effective diameter
- 385
- mm
- Effective area
- SD
- 1164
- cm²
- Moving mass
- MMS
- 212
- g
- Moving mass (without air load)
- MMD
- 188.8
- g
- Material
- Treated Cellulose
- Stiffness
- KMS
- 8.07
- N/mm
- Compliance
- CMS
- 124
- µm/N
- Equivalent volume to the compliance
- VAS
- 239
- L
- Mechanical resistance
- RMS
- 4.21
- N·s/m
- Spider material
- Nomex Fabric
- Nominal diameter
- 18
- ″
- 450
- mm
- Overall diameter
- 388
- mm
- Baffle cutout diameter
- 354
- mm
- Overall depth
- 208
- mm
- Flange thickness
- 13
- mm
- Mounting depth
- 195
- mm
- Volume occupied by the driver (estimated)
- 4.7
- L
- Net weight
- 8.0
- kg
- Frame material
- Diecast Aluminium
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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