Eighteen Sound 18NLW4000
Subwoofer
18″ / 462 mm
Nominal diameter
34 Hz
Resonance
0.33
Q factor
94 dB
Sensitivity
± 15 mm
Linear excursion
3200 W
Program Power
![Eighteen Sound 18NLW4000 Subwoofer](/18Sound/18NLW4000/18Sound_18NLW4000_(Photo_1).jpg)
![Eighteen Sound 18NLW4000 Subwoofer](/18Sound/18NLW4000/18Sound_18NLW4000_(Photo_2).jpg)
- Amazon.com
- $$$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 93.6
- dB
- Frequency response
- 30 - 1800
- Hz
- Resonance frequency (free air)
- fS
- 34.0
- Hz
- Mechanical quality factor
- QMS
- 22.00
- Electrical quality factor
- QES
- 0.34
- Total quality factor
- QTS
- 0.33
- Maximum linear excursion
- xmax
- 15.0
- mm
- Air volume displaced at xmax
- VD
- 1695
- cm³
- Power handling
- P
- 1500
- W
- Program power
- Pmax
- 3200
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 4.9
- Ω
- Inductance (1kHz)
- LE
- 2.8
- mH
- VC Diameter
- 100
- mm
- Winding material
- Copper
- Force factor
- Bl
- 30.0
- N/A
- Motor constant
- Bl/√RE
- 13.6
- N/√W
- Material
- Neodymium
- Effective diameter
- 379
- mm
- Effective area
- SD
- 1130
- cm²
- Moving mass
- MMS
- 290
- g
- Moving mass (without air load)
- MMD
- 262.7
- g
- Material
- Water,UV repellent
- Stiffness
- KMS
- 13.16
- N/mm
- Compliance
- CMS
- 76
- µm/N
- Equivalent volume to the compliance
- VAS
- 135
- L
- Mechanical resistance
- RMS
- 2.82
- N·s/m
- Nominal diameter
- 18
- ″
- 462
- mm
- Overall diameter
- 462
- mm
- Baffle cutout diameter
- 416
- mm
- Overall depth
- 227
- mm
- Flange thickness
- 26
- mm
- Mounting depth
- 201
- mm
- Volume occupied by the driver (estimated)
- 6.3
- L
- Net weight
- 9.8
- kg
Available on (affiliate link)
Specifications
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
![Eighteen Sound 18NLW4000 Impedance](/18Sound/18NLW4000/18Sound_18NLW4000_(Impedance).png)
![Eighteen Sound 18NLW4000 SPL](/18Sound/18NLW4000/18Sound_18NLW4000_(Frequency_response).png)
![Eighteen Sound 18NLW4000 Dimensions](/18Sound/18NLW4000/18Sound_18NLW4000_(Dimensions).png)
Export this driver to a simulation software:
![WinISD](/images/export/WinISD.png)
![Basta!](/images/export/Basta.png)
![Hornresp](/images/export/Hornresp.png)
![QSpeakers](/images/export/QSpeakers.png)
![SpeakerSim](/images/export/SpeakerSim.png)
![MfbLabs](/images/export/MfbLabs.png)
![Speakerbench](/images/export/Speakerbench.png)