Eighteen Sound 18iD
Subwoofer
18″ / 460 mm
Nominal diameter
40 Hz
Resonance
0.26
Q factor
94 dB
Sensitivity
± 15.5 mm
Linear excursion
3600 W
Program Power
.jpg)
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 94.1
- dB
- Frequency response
- 30 - 2500
- Hz
- Resonance frequency (free air)
- fS
- 40.0
- Hz
- Mechanical quality factor
- QMS
- 5.50
- Electrical quality factor
- QES
- 0.27
- Total quality factor
- QTS
- 0.26
- Maximum linear excursion
- xmax
- 15.5
- mm
- Air volume displaced at xmax
- VD
- 1899
- cm³
- Power handling
- P
- 1800
- W
- Program power
- Pmax
- 3600
- W
- Nominal impedance
- Z
- 2
- Ω
- DC resistance
- RE
- 1.5
- Ω
- Inductance (1kHz)
- LE
- 1.22
- mH
- VC Diameter
- 135
- mm
- Winding material
- Copper
- Force factor
- Bl
- 24.0
- N/A
- Motor constant
- Bl/√RE
- 19.6
- N/√W
- Material
- Neodymium
- Effective diameter
- 395
- mm
- Effective area
- SD
- 1225
- cm²
- Moving mass
- MMS
- 420
- g
- Moving mass (without air load)
- MMD
- 390.3
- g
- Material
- Water,UV repellent
- Stiffness
- KMS
- 26.32
- N/mm
- Compliance
- CMS
- 38
- µm/N
- Equivalent volume to the compliance
- VAS
- 67
- L
- Mechanical resistance
- RMS
- 19.19
- N·s/m
- Nominal diameter
- 18
- ″
- 460
- mm
- Overall diameter
- 462
- mm
- Baffle cutout diameter
- 416
- mm
- Overall depth
- 236
- mm
- Flange thickness
- 26
- mm
- Mounting depth
- 210
- mm
- Volume occupied by the driver (estimated)
- 7.6
- L
- Net weight
- 12.5
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
.png)
.png)
.png)
Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
Speakerbench.png.webp)
.png.webp)
.png.webp)