Dayton Audio ND140-4
4Ω
8ΩMid Bass
5.25″ / 138 mm
Nominal diameter
59 Hz
Resonance
0.63
Q factor
85 dB
Sensitivity
± 4 mm
Linear excursion
80 W
Program Power
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- Parts Express
- $$
- Amazon.com
- $$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 84.7
- dB
- Frequency response
- 54 - 8000
- Hz
- Resonance frequency (free air)
- fS
- 59.2
- Hz
- Mechanical quality factor
- QMS
- 5.35
- Electrical quality factor
- QES
- 0.72
- Total quality factor
- QTS
- 0.63
- Maximum linear excursion
- xmax
- 4.0
- mm
- Air volume displaced at xmax
- VD
- 35
- cm³
- Power handling
- P
- 40
- W
- Program power
- Pmax
- 80
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.7
- Ω
- Inductance (1kHz)
- LE
- 0.79
- mH
- VC Diameter
- 25
- mm
- Former material
- Kapton Polyimide
- Force factor
- Bl
- 3.9
- N/A
- Motor constant
- Bl/√RE
- 2.03
- N/√W
- Material
- Neodymium
- Effective diameter
- 105
- mm
- Effective area
- SD
- 87
- cm²
- Moving mass
- MMS
- 10.1
- g
- Moving mass (without air load)
- MMD
- 9.5
- g
- Material
- Black Anodized Aluminum
- Stiffness
- KMS
- 1.41
- N/mm
- Compliance
- CMS
- 710
- µm/N
- Equivalent volume to the compliance
- VAS
- 7.22
- L
- Mechanical resistance
- RMS
- 0.7
- N·s/m
- Surround material
- Rubber
- Nominal diameter
- 5.25
- ″
- 138
- mm
- Overall diameter
- 138
- mm
- Baffle cutout diameter
- 120
- mm
- Overall depth
- 71
- mm
- Volume occupied by the driver (estimated)
- 0.32
- L
Available on (affiliate links)
Specifications
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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