Dayton Audio PCX12-8
Woofer
12″ / 310 mm
Nominal diameter
41 Hz
Resonance
0.56
Q factor
94 dB
Sensitivity
± 2 mm
Linear excursion
400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.8
dB
Frequency response
50 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
40.5
Hz
Mechanical quality factor
QMS
10.50
Electrical quality factor
QES
0.59
Total quality factor
QTS
0.56
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
102
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.0
Ω
Inductance (1kHz)
LE
1.19
mH
VC Diameter
51
mm
Winding material
Copper Kapton
Former material
Polyimide
Magnet
Force factor
Bl
9.69
N/A
Motor constant
Bl/√RE
3.67
N/√W
Material
Ferrite
Diaphragm
Effective diameter
255
mm
Effective area
SD
511
cm²
Moving mass
MMS
31.5
g
Moving mass (without air load)
MMD
23.2
g
Material
Paper
Suspensions
Stiffness
KMS
2.04
N/mm
Compliance
CMS
491
µm/N
Equivalent volume to the compliance
VAS
180
L
Mechanical resistance
RMS
0.76
N·s/m
Surround material
Paper
Dimensions
Nominal diameter
12
″
310
mm
Overall diameter
310
mm
Baffle cutout diameter
280
mm
Overall depth
140
mm
Volume occupied by the driver (estimated)
2.3
L
Frame material
Stamped Steel
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fS
40 Hz
SD
897 cm²
40 - 5000 Hz
QTS
0.49
xmax
5.0 mm
SPL1W
96 dB
Bl/√RE
6.44
Pmax
800 W
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fS
38 Hz
SD
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38 - 3500 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
5.97
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fS
43 Hz
SD
855 cm²
40 - 3000 Hz
QTS
0.53
xmax
4.3 mm
SPL1W
97 dB
Bl/√RE
5.56
Pmax
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