Eighteen Sound 18NTLS5000
4Ω
Subwoofer
| Nominal diameter | 18″ / 462 mm |
| Resonance | 37 Hz |
| Q factor | 0.33 |
| Sensitivity | 92.4 dB |
| Linear excursion | ± 17.8 mm |
| Program Power | 3600 W |
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Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 92.4dB
- Frequency response 35 - 4000Hz
Thiele & Small parameters
- Resonance frequency (free air) fS 37Hz
- Mechanical quality factor QMS 8.40
- Electrical quality factor QES 0.35
- Total quality factor QTS 0.33
Large signal parameters
- Maximum linear excursion xmax 17.8mm
- Air volume displaced at xmax VD 2174cm³
- Power handling P 1800W
- Program power Pmax 3600W
Voice Coil
- Nominal impedance Z 4Ω
- DC resistance RE 2.7Ω
- Inductance (1kHz) LE 2mH
- VC Diameter 115mm
- Winding height HVC 43mm
Magnet
- Force factor Bl 30.7N/A
- Motor constant Bl/√RE 18.7N/√W
- Air gap height HAG 15mm
- Material Neodymium
Diaphragm
- Effective diameter 395mm
- Effective area SD 1225cm²
- Moving mass MMS 510g
- Moving mass (without air load) MMD 480g
Suspensions
- Stiffness KMS 28.6N/mm
- Compliance CMS 35µm/N
- Equivalent volume to the compliance VAS 75L
- Mechanical resistance RMS 14.1N·s/m
Dimensions
- Nominal diameter 18″
- 462mm
- Overall diameter 462mm
- Baffle cutout diameter 417mm
- Overall depth 330mm
- Flange thickness 31mm
- Mounting depth 299mm
- Volume occupied by the driver (estimated) 9.9L
- Net weight 13.6kg
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Export this driver to a simulation software:
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