Eighteen Sound 18NLW9000 8Ω
4Ω
8Ω
Subwoofer
| Nominal diameter | 18″ / 462 mm |
| Resonance | 34 Hz |
| Q factor | 0.31 |
| Sensitivity | 95.2 dB |
| Linear excursion | ± 14 mm |
| Program Power | 3600 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 95.2dB
- Frequency response 32 - 2500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 34Hz
- Mechanical quality factor QMS 7.00
- Electrical quality factor QES 0.32
- Total quality factor QTS 0.31
Large signal parameters
- Maximum linear excursion (one way) xmax 14mm
- Air volume displaced at xmax VD 1711cm³
- Power handling P 1800W
- Program power Pmax 3600W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.5Ω
- Inductance (1kHz) LE 1.9mH
- VC Diameter 135mm
Magnet
- Force factor Bl 28N/A
- Motor constant Bl/√RE 11.9N/√W
Diaphragm
- Effective diameter 394mm
- Effective area SD 1222cm²
- Moving mass MMS 218g
- Moving mass (without air load) MMD 188g
Suspensions
- Stiffness KMS 9.9N/mm
- Compliance CMS 101µm/N
- Equivalent volume to the compliance VAS 206L
- Mechanical resistance RMS 6.65N·s/m
Dimensions
- Nominal diameter 18″
- 462mm
- Overall diameter 462mm
- Baffle cutout diameter 422mm
- Overall depth 237mm
- Flange thickness 26mm
- Mounting depth 211mm
- Volume occupied by the driver (estimated) 7.6L
- Net weight 12.5kg
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
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SpeakerSim
MfbLabs
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