SB Acoustics SB12PFC25-8
4Ω
8Ω
Mid Bass
4″ / 102 mm
Nominal diameter
64 Hz
Resonance
0.56
Q factor
84 dB
Sensitivity
± 5 mm
Linear excursion
60 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 84.2
- dB
- Resonance frequency (free air)
- fS
- 64.0
- Hz
- Mechanical quality factor
- QMS
- 4.10
- Electrical quality factor
- QES
- 0.65
- Total quality factor
- QTS
- 0.56
- Maximum linear excursion
- xmax
- 5.0
- mm
- Air volume displaced at xmax
- VD
- 25
- cm³
- Power handling
- P
- 30
- W
- Program power
- Pmax
- 60
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.4
- Ω
- Inductance (1kHz)
- LE
- 0.36
- mH
- VC Diameter
- 25
- mm
- Winding height
- HVC
- 15
- mm
- Flux density
- B
- 0.84
- T
- Force factor
- Bl
- 4.5
- N/A
- Motor constant
- Bl/√RE
- 1.78
- N/√W
- Air gap height
- HAG
- 5
- mm
- Weight
- 0.32
- kg
- Effective diameter
- 80
- mm
- Effective area
- SD
- 50
- cm²
- Moving mass
- MMS
- 5.1
- g
- Moving mass (without air load)
- MMD
- 4.8
- g
- Stiffness
- KMS
- 0.83
- N/mm
- Compliance
- CMS
- 1210
- µm/N
- Equivalent volume to the compliance
- VAS
- 4.3
- L
- Mechanical resistance
- RMS
- 0.5
- N·s/m
- Nominal diameter
- 4
- ″
- 102
- mm
- Volume occupied by the driver (estimated)
- 0.27
- L
- Net weight
- 0.7
- 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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