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
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
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
Dayton Audio PCX12-8 Impedance
Dayton Audio PCX12-8 SPL

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