RCF LF18Y488
Subwoofer
18″ / 457 mm
Nominal diameter
33 Hz
Resonance
0.29
Q factor
96 dB
Sensitivity
± 9 mm
Linear excursion
1800 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
- 32.6
- Hz
- Mechanical quality factor
- QMS
- 7.60
- Electrical quality factor
- QES
- 0.30
- Total quality factor
- QTS
- 0.29
- Maximum linear excursion
- xmax
- 9.0
- mm
- Maximum excursion before damage
- xlim
- 25.0
- mm
- Air volume displaced at xmax
- VD
- 1080
- cm³
- Power handling
- P
- 900
- W
- Program power
- Pmax
- 1800
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 4.8
- Ω
- Inductance (1kHz)
- LE
- 2.4
- mH
- VC Diameter
- 102
- mm
- Winding height
- HVC
- 23
- mm
- Winding material
- Copper
- Former material
- Glass Fiber
- Force factor
- Bl
- 24.6
- N/A
- Motor constant
- Bl/√RE
- 11.2
- N/√W
- Air gap height
- HAG
- 12
- mm
- Effective diameter
- 395
- mm
- Effective area
- SD
- 1200
- cm²
- Moving mass
- MMS
- 182
- g
- Moving mass (without air load)
- MMD
- 152.7
- g
- Stiffness
- KMS
- 7.63
- N/mm
- Compliance
- CMS
- 131
- µm/N
- Equivalent volume to the compliance
- VAS
- 268
- L
- Mechanical resistance
- RMS
- 4.9
- 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
- 7.0
- L
- Net weight
- 13.0
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
Speakerbench.jpg.webp)
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