RCF LF18Y408
Subwoofer
18″ / 457 mm
Nominal diameter
32 Hz
Resonance
0.26
Q factor
96 dB
Sensitivity
± 9 mm
Linear excursion
2400 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 95.9
- dB
- Frequency response
- 30 - 1000
- Hz
- Resonance frequency (free air)
- fS
- 31.6
- Hz
- Mechanical quality factor
- QMS
- 6.50
- Electrical quality factor
- QES
- 0.27
- Total quality factor
- QTS
- 0.26
- Maximum linear excursion
- xmax
- 9.0
- mm
- Maximum excursion before damage
- xlim
- 26.0
- mm
- Air volume displaced at xmax
- VD
- 1080
- cm³
- Power handling
- P
- 1200
- W
- Program power
- Pmax
- 2400
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.1
- Ω
- Inductance (1kHz)
- LE
- 2.5
- mH
- VC Diameter
- 102
- mm
- Winding height
- HVC
- 25
- mm
- Winding material
- Copper
- Former material
- Glass Fiber
- Force factor
- Bl
- 27.8
- N/A
- Motor constant
- Bl/√RE
- 12.3
- N/√W
- Air gap height
- HAG
- 15
- mm
- Effective diameter
- 395
- mm
- Effective area
- SD
- 1200
- cm²
- Moving mass
- MMS
- 201
- g
- Moving mass (without air load)
- MMD
- 171.7
- g
- Stiffness
- KMS
- 7.94
- N/mm
- Compliance
- CMS
- 126
- µm/N
- Equivalent volume to the compliance
- VAS
- 257
- L
- Mechanical resistance
- RMS
- 6.14
- N·s/m
- Spider material
- with silicon damping
- Nominal diameter
- 18
- ″
- 457
- mm
- Overall diameter
- 465
- mm
- Baffle cutout diameter
- 424
- mm
- Volume occupied by the driver
- 5.5
- L
- Net weight
- 9.5
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
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WinISD
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SpeakerSim
MfbLabs
Speakerbench.png.webp)
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