Eighteen Sound 18NTLW5000
4Ω
8ΩSubwoofer
18″ / 462 mm
Nominal diameter
32 Hz
Resonance
0.3
Q factor
94 dB
Sensitivity
± 17.5 mm
Linear excursion
4000 W
Program Power
![Eighteen Sound 18NTLW5000 Subwoofer](/18Sound/18NTLW5000/18Sound_18NTLW5000_(Photo_1).png)
![Eighteen Sound 18NTLW5000 Subwoofer](/18Sound/18NTLW5000/18Sound_18NTLW5000_(Photo_2).png)
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 94.0
- dB
- Frequency response
- 35 - 1000
- Hz
- Resonance frequency (free air)
- fS
- 32.0
- Hz
- Mechanical quality factor
- QMS
- 9.50
- Electrical quality factor
- QES
- 0.31
- Total quality factor
- QTS
- 0.30
- Maximum linear excursion
- xmax
- 17.5
- mm
- Air volume displaced at xmax
- VD
- 2144
- cm³
- Power handling
- P
- 1800
- W
- Program power
- Pmax
- 4000
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.1
- Ω
- Inductance (1kHz)
- LE
- 1.23
- mH
- VC Diameter
- 115
- mm
- Winding material
- Aluminum
- Force factor
- Bl
- 25.0
- N/A
- Motor constant
- Bl/√RE
- 14.2
- N/√W
- Effective diameter
- 395
- mm
- Effective area
- SD
- 1225
- cm²
- Moving mass
- MMS
- 306
- g
- Moving mass (without air load)
- MMD
- 276.3
- g
- Material
- Water,UV repellent
- Stiffness
- KMS
- 12.35
- N/mm
- Compliance
- CMS
- 81
- µm/N
- Equivalent volume to the compliance
- VAS
- 165
- L
- Mechanical resistance
- RMS
- 6.48
- N·s/m
- Nominal diameter
- 18
- ″
- 462
- mm
- Overall diameter
- 462
- mm
- Baffle cutout diameter
- 416
- mm
- Overall depth
- 310
- mm
- Flange thickness
- 26
- mm
- Mounting depth
- 284
- mm
- Volume occupied by the driver (estimated)
- 8.8
- L
- Net weight
- 12.0
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
![Eighteen Sound 18NTLW5000 Impedance](/18Sound/18NTLW5000/18Sound_18NTLW5000_(Impedance).png)
![Eighteen Sound 18NTLW5000 SPL](/18Sound/18NTLW5000/18Sound_18NTLW5000_(Frequency_response).png)
![Eighteen Sound 18NTLW5000 Dimensions](/18Sound/18NTLW5000/18Sound_18NTLW5000_(Dimensions).jpg)
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)