Fostex P650K
Full-range
2.6″ / 65 mm
Nominal diameter
157 Hz
Resonance
0.99
Q factor
83 dB
Sensitivity
± 0.5 mm
Linear excursion
15 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 83.1
- dB
- Frequency response
- 157 - 20000
- Hz
- Resonance frequency (free air)
- fS
- 157
- Hz
- Mechanical quality factor
- QMS
- 3.39
- Electrical quality factor
- QES
- 1.40
- Total quality factor
- QTS
- 0.99
- Maximum linear excursion
- xmax
- 0.5
- mm
- Air volume displaced at xmax
- VD
- 1.1
- cm³
- Power handling
- P
- 5
- W
- Program power
- Pmax
- 15
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 7.3
- Ω
- Inductance (1kHz)
- LE
- 0.25
- mH
- VC Diameter
- 20
- mm
- Force factor
- Bl
- 3.06
- N/A
- Motor constant
- Bl/√RE
- 1.13
- N/√W
- Weight
- 0.074
- kg
- Effective diameter
- 52
- mm
- Effective area
- SD
- 21
- cm²
- Moving mass
- MMS
- 1.8
- g
- Moving mass (without air load)
- MMD
- 1.7
- g
- Stiffness
- KMS
- 1.74
- N/mm
- Compliance
- CMS
- 576
- µm/N
- Equivalent volume to the compliance
- VAS
- 0.35
- L
- Mechanical resistance
- RMS
- 0.52
- N·s/m
- Nominal diameter
- 2.6
- ″
- 65
- mm
- Overall diameter
- 65
- mm
- Baffle cutout diameter
- 60
- mm
- Overall depth
- 38
- mm
- Net weight
- 0.249
- 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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Speakerbench.jpg.webp)
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