RCF LF18N408
Subwoofer
18″ / 457 mm
Nominal diameter
30 Hz
Resonance
0.33
Q factor
93 dB
Sensitivity
± 15 mm
Linear excursion
3000 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 93.4
- dB
- Frequency response
- 25 - 1000
- Hz
- Resonance frequency (free air)
- fS
- 30.0
- Hz
- Mechanical quality factor
- QMS
- 3.60
- Electrical quality factor
- QES
- 0.36
- Total quality factor
- QTS
- 0.33
- Maximum linear excursion
- xmax
- 15.0
- mm
- Maximum excursion before damage
- xlim
- 29.0
- mm
- Air volume displaced at xmax
- VD
- 1830
- cm³
- Power handling
- P
- 1500
- W
- Program power
- Pmax
- 3000
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 4.3
- Ω
- Inductance (1kHz)
- LE
- 1.56
- mH
- VC Diameter
- 102
- mm
- Winding height
- HVC
- 38
- mm
- Winding material
- Copper
- Force factor
- Bl
- 25.7
- N/A
- Motor constant
- Bl/√RE
- 12.4
- N/√W
- Air gap height
- HAG
- 15
- mm
- Effective diameter
- 395
- mm
- Effective area
- SD
- 1220
- cm²
- Moving mass
- MMS
- 284
- g
- Moving mass (without air load)
- MMD
- 254.2
- g
- Stiffness
- KMS
- 10.42
- N/mm
- Compliance
- CMS
- 96
- µm/N
- Equivalent volume to the compliance
- VAS
- 193
- L
- Mechanical resistance
- RMS
- 14.87
- N·s/m
- Nominal diameter
- 18
- ″
- 457
- mm
- Overall diameter
- 465
- mm
- Baffle cutout diameter
- 425
- mm
- Overall depth
- 224
- mm
- Volume occupied by the driver
- 5.5
- L
- Net weight
- 9.0
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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