Fi Car Audio HT-1 18 S4
2Ω
4Ω
Subwoofer
18″ / 470 mm
Nominal diameter
21 Hz
Resonance
0.51
Q factor
88 dB
Sensitivity
± 27 mm
Linear excursion
2000 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 87.8
- dB
- Resonance frequency (free air)
- fS
- 20.9
- Hz
- Mechanical quality factor
- QMS
- 5.75
- Electrical quality factor
- QES
- 0.57
- Total quality factor
- QTS
- 0.51
- Maximum linear excursion
- xmax
- 27.0
- mm
- Air volume displaced at xmax
- VD
- 3267
- cm³
- Power handling
- P
- 1000
- W
- Program power
- Pmax
- 2000
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 2.9
- Ω
- Inductance (1kHz, estimated)
- LE
- 1.81
- mH
- Force factor
- Bl
- 18.77
- N/A
- Motor constant
- Bl/√RE
- 11.1
- N/√W
- Effective diameter
- 393
- mm
- Effective area
- SD
- 1210
- cm²
- Moving mass
- MMS
- 518
- g
- Moving mass (without air load)
- MMD
- 488.2
- g
- Stiffness
- KMS
- 9.23
- N/mm
- Compliance
- CMS
- 108
- µm/N
- Equivalent volume to the compliance
- VAS
- 222
- L
- Mechanical resistance
- RMS
- 11.83
- N·s/m
- Nominal diameter
- 18
- ″
- 470
- mm
- Overall diameter
- 470
- mm
- Baffle cutout diameter
- 425
- mm
- Mounting depth
- 165
- mm
- Volume occupied by the driver
- 5.1
- L
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
Export this driver to a simulation software:
Closed Box Simulator·
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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