Eighteen Sound 18NLW9400 8Ω
4Ω
8Ω
Subwoofer
| Nominal diameter | 18″ / 462 mm |
| Resonance | 33 Hz |
| Q factor | 0.26 |
| Sensitivity | 96.4 dB |
| Linear excursion | ± 9.5 mm |
| Program Power | 2400 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 96.4dB
- Frequency response 30 - 2500Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 33Hz
- Mechanical quality factor QMS 6.10
- Electrical quality factor QES 0.28
- Total quality factor QTS 0.26
Large signal parameters
- Maximum linear excursion (one way) xmax 9.5mm
- Air volume displaced at xmax VD 1164cm³
- Power handling P 1200W
- Program power Pmax 2400W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.0Ω
- Inductance (1kHz) LE 1.9mH
- VC Diameter 100mm
Magnet
- Force factor Bl 26N/A
- Motor constant Bl/√RE 11.6N/√W
Diaphragm
- Effective diameter 395mm
- Effective area SD 1225cm²
- Moving mass MMS 180g
- Moving mass (without air load) MMD 150g
Suspensions
- Stiffness KMS 7.75N/mm
- Compliance CMS 129µm/N
- Equivalent volume to the compliance VAS 268L
- Mechanical resistance RMS 6.12N·s/m
Dimensions
- Nominal diameter 18″
- 462mm
- Overall diameter 462mm
- Baffle cutout diameter 416mm
- Overall depth 223mm
- Flange thickness 21mm
- Mounting depth 202mm
- Volume occupied by the driver (estimated) 5.8L
- Net weight 8.7kg
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Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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