Dayton Audio ND65-4
4Ω
8ΩFull-range
2.5″ / 64 mm
Nominal diameter
90 Hz
Resonance
0.61
Q factor
79 dB
Sensitivity
± 3.5 mm
Linear excursion
30 W
Program Power
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- Parts Express
- $$
- Amazon.com
- $$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 78.6
- dB
- Frequency response
- 85 - 20000
- Hz
- Resonance frequency (free air)
- fS
- 89.5
- Hz
- Mechanical quality factor
- QMS
- 5.56
- Electrical quality factor
- QES
- 0.68
- Total quality factor
- QTS
- 0.61
- Maximum linear excursion
- xmax
- 3.5
- mm
- Air volume displaced at xmax
- VD
- 5.5
- cm³
- Power handling
- P
- 15
- W
- Program power
- Pmax
- 30
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.5
- Ω
- Inductance (1kHz)
- LE
- 0.44
- mH
- VC Diameter
- 19
- mm
- Winding material
- Copper
- Former material
- Kapton® / Polyimide
- Force factor
- Bl
- 2.68
- N/A
- Motor constant
- Bl/√RE
- 1.43
- N/√W
- Material
- Neodymium
- Effective diameter
- 45
- mm
- Effective area
- SD
- 16
- cm²
- Moving mass
- MMS
- 2.5
- g
- Moving mass (without air load)
- MMD
- 2.5
- g
- Material
- Black Anodized Aluminum
- Stiffness
- KMS
- 0.79
- N/mm
- Compliance
- CMS
- 1260
- µm/N
- Equivalent volume to the compliance
- VAS
- 0.53
- L
- Mechanical resistance
- RMS
- 0.25
- N·s/m
- Surround material
- Rubber
- Nominal diameter
- 2.5
- ″
- 64
- mm
- Overall diameter
- 64
- mm
- Baffle cutout diameter
- 52
- mm
- Overall depth
- 48
- mm
- Volume occupied by the driver (estimated)
- 0.15
- L
- Frame material
- Steel
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:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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