Fostex P1000K
Full-range
4″ / 100 mm
Nominal diameter
82 Hz
Resonance
0.53
Q factor
89 dB
Sensitivity
± 0.35 mm
Linear excursion
36 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 88.7
- dB
- Frequency response
- 82 - 16000
- Hz
- Resonance frequency (free air)
- fS
- 82.0
- Hz
- Mechanical quality factor
- QMS
- 4.00
- Electrical quality factor
- QES
- 0.60
- Total quality factor
- QTS
- 0.53
- Maximum linear excursion
- xmax
- 0.35
- mm
- Air volume displaced at xmax
- VD
- 1.8
- cm³
- Power handling
- P
- 12
- W
- Program power
- Pmax
- 36
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.8
- Ω
- Inductance (1kHz)
- LE
- 0.04
- mH
- VC Diameter
- 20
- mm
- Force factor
- Bl
- 4.29
- N/A
- Motor constant
- Bl/√RE
- 1.65
- N/√W
- Weight
- 0.12
- kg
- Effective diameter
- 80
- mm
- Effective area
- SD
- 50
- cm²
- Moving mass
- MMS
- 3.1
- g
- Moving mass (without air load)
- MMD
- 2.8
- g
- Stiffness
- KMS
- 0.81
- N/mm
- Compliance
- CMS
- 1241
- µm/N
- Equivalent volume to the compliance
- VAS
- 4.84
- L
- Mechanical resistance
- RMS
- 0.4
- N·s/m
- Nominal diameter
- 4
- ″
- 100
- mm
- Overall diameter
- 107
- mm
- Baffle cutout diameter
- 94
- mm
- Overall depth
- 48
- mm
- Volume occupied by the driver (estimated)
- 0.12
- L
- Net weight
- 0.405
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
Closed Box Simulator·
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
Speakerbench.png.webp)
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