Dayton Audio PA310-8
Woofer
12″ / 310 mm
Nominal diameter
39 Hz
Resonance
0.29
Q factor
94 dB
Sensitivity
± 5 mm
Linear excursion
900 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.8
dB
Frequency response
44 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
8.85
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.29
Large signal parameters
Maximum linear excursion
xmax
5.0
mm
Air volume displaced at xmax
VD
266
cm³
Power handling
P
450
W
Program power
Pmax
900
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
1.68
mH
VC Diameter
76
mm
Winding material
Copper
Former material
Kapton® / Polyimide
Magnet
Force factor
Bl
18.0
N/A
Motor constant
Bl/√RE
7.68
N/√W
Weight
2.268
kg
Material
Ferrite
Diaphragm
Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
72.8
g
Moving mass (without air load)
MMD
64.2
g
Material
Paper / Carbon Fiber
Suspensions
Stiffness
KMS
4.35
N/mm
Compliance
CMS
230
µm/N
Equivalent volume to the compliance
VAS
91.8
L
Mechanical resistance
RMS
2.02
N·s/m
Surround material
Cloth
Dimensions
Nominal diameter
12
″
310
mm
Overall diameter
310
mm
Baffle cutout diameter
283
mm
Overall depth
143
mm
Volume occupied by the driver (estimated)
2.4
L
Frame material
Steel
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fS
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SD
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40 - 1000 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
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Pmax
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fS
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SD
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fS
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SD
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