Dayton Audio PC105-4
4Ω
8ΩFull-range
4″ / 107 mm
Nominal diameter
81 Hz
Resonance
0.51
Q factor
86 dB
Sensitivity
± 2 mm
Linear excursion
80 W
Program Power
- Parts Express
- $$
- Amazon.com
- $$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 86.4
- dB
- Frequency response
- 80 - 15000
- Hz
- Resonance frequency (free air)
- fS
- 81.4
- Hz
- Mechanical quality factor
- QMS
- 2.17
- Electrical quality factor
- QES
- 0.67
- Total quality factor
- QTS
- 0.51
- Maximum linear excursion
- xmax
- 2.0
- mm
- Air volume displaced at xmax
- VD
- 11
- cm³
- Power handling
- P
- 40
- W
- Program power
- Pmax
- 80
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.3
- Ω
- Inductance (1kHz)
- LE
- 0.32
- mH
- VC Diameter
- 25
- mm
- Winding material
- Copper
- Former material
- Aluminum
- Force factor
- Bl
- 3.3
- N/A
- Motor constant
- Bl/√RE
- 1.82
- N/√W
- Material
- Ferrite
- Effective diameter
- 82
- mm
- Effective area
- SD
- 53
- cm²
- Moving mass
- MMS
- 4.2
- g
- Moving mass (without air load)
- MMD
- 3.9
- g
- Material
- Poly Composite
- Stiffness
- KMS
- 1.09
- N/mm
- Compliance
- CMS
- 920
- µm/N
- Equivalent volume to the compliance
- VAS
- 3.68
- L
- Mechanical resistance
- RMS
- 0.99
- N·s/m
- Surround material
- Rubber
- Nominal diameter
- 4
- ″
- 107
- mm
- Overall diameter
- 107
- mm
- Baffle cutout diameter
- 60
- mm
- Overall depth
- 102
- mm
- Volume occupied by the driver (estimated)
- 0.37
- L
- Frame material
- Stamped Steel