Eighteen Sound 18NTLW5000 8Ω
4Ω
8Ω
Subwoofer
| Nominal diameter | 18″ / 462 mm |
| Resonance | 32 Hz |
| Q factor | 0.32 |
| Sensitivity | 93.4 dB |
| Linear excursion | ± 17.5 mm |
| Program power | 4000 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 93.4dB
- Frequency response 30 - 1800Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 32Hz
- Mechanical quality factor QMS 8.52
- Electrical quality factor QES 0.33
- Total quality factor QTS 0.32
Large signal parameters
- Maximum linear excursion (one way) xmax 17.5mm
- Air volume displaced at xmax VD 2023cm³
- Power handling P 1800W
- Program power Pmax 4000W
Voice Coil
- Nominal impedance Z 8Ω
- DC resistance RE 5.5Ω
- Inductance (1kHz) LE 1.85mH
- VC Diameter 115mm
- Winding material Aluminum
Magnet
- Force factor Bl 31.3N/A
- Motor constant Bl/√RE 13.3N/√W
- Material Neodymium
Diaphragm
- Effective diameter 384mm
- Effective area SD 1156cm²
- Moving mass (including air load) MMS 295g
- Moving mass MMD 267g
- Material Water,UV repellent
Suspensions
- Stiffness KMS 11.9N/mm
- Compliance CMS 84µm/N
- Equivalent volume to the compliance VAS 176L
- Mechanical resistance RMS 6.96N·s/m
Dimensions
- Nominal diameter 18″
- 462mm
- Overall diameter 462mm
- Baffle cutout diameter 416mm
- Overall depth 310mm
- Flange thickness 26mm
- Mounting depth 284mm
- Volume occupied by the driver (estimated) 8.8L
- Net weight 12.0kg
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Export this driver to a box design software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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