Eighteen Sound 18W2001
Subwoofer
18″ / 460 mm
Nominal diameter
37 Hz
Resonance
0.25
Q factor
98 dB
Sensitivity
± 7 mm
Linear excursion
2400 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 97.5
- dB
- Frequency response
- 37 - 3000
- Hz
- Resonance frequency (free air)
- fS
- 37.0
- Hz
- Mechanical quality factor
- QMS
- 7.29
- Electrical quality factor
- QES
- 0.26
- Total quality factor
- QTS
- 0.25
- Maximum linear excursion
- xmax
- 7.0
- mm
- Air volume displaced at xmax
- VD
- 794
- cm³
- Power handling
- P
- 1200
- W
- Program power
- Pmax
- 2400
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.8
- Ω
- Inductance (1kHz)
- LE
- 1.9
- mH
- VC Diameter
- 100
- mm
- Force factor
- Bl
- 27.1
- N/A
- Motor constant
- Bl/√RE
- 11.3
- N/√W
- Material
- Ferrite
- Effective diameter
- 380
- mm
- Effective area
- SD
- 1134
- cm²
- Moving mass
- MMS
- 143
- g
- Moving mass (without air load)
- MMD
- 115.6
- g
- Stiffness
- KMS
- 7.75
- N/mm
- Compliance
- CMS
- 129
- µm/N
- Equivalent volume to the compliance
- VAS
- 230
- L
- Mechanical resistance
- RMS
- 4.56
- N·s/m
- Nominal diameter
- 18
- ″
- 460
- mm
- Overall diameter
- 462
- mm
- Baffle cutout diameter
- 416
- mm
- Overall depth
- 205
- mm
- Flange thickness
- 19
- mm
- Mounting depth
- 186
- mm
- Volume occupied by the driver (estimated)
- 6.5
- L
- Net weight
- 11.5
- kg