Precision Devices PD.123C001
Mid-range
12″ / 305 mm
Nominal diameter
35 Hz
Resonance
0.14
Q factor
97 dB
Sensitivity
± 7.5 mm
Linear excursion
800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.8
dB
Frequency response
45 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
35.0
Hz
Mechanical quality factor
QMS
7.50
Electrical quality factor
QES
0.15
Total quality factor
QTS
0.14
Large signal parameters
Maximum linear excursion
xmax
7.5
mm
Air volume displaced at xmax
VD
410
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
2.17
mH
VC Diameter
76
mm
Winding height
HVC
21
mm
Winding material
Copper
Former material
Glass Fibre
Magnet
Flux density
B
1.2
T
Force factor
Bl
24.5
N/A
Motor constant
Bl/√RE
10.4
N/√W
Air gap height
HAG
11
mm
Weight
3.3
kg
Material
Ferrite Y30
Diaphragm
Effective diameter
264
mm
Effective area
SD
547
cm²
Moving mass
MMS
70
g
Moving mass (without air load)
MMD
60.6
g
Suspensions
Stiffness
KMS
3.47
N/mm
Compliance
CMS
288
µm/N
Equivalent volume to the compliance
VAS
122
L
Mechanical resistance
RMS
2.05
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
331
mm
Baffle cutout diameter
279
mm
Overall depth
121
mm
Flange thickness
10
mm
Mounting depth
111
mm
Volume occupied by the driver (estimated)
3.4
L
Net weight
9.7
kg
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Export this driver to a simulation software:
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12″Woofer
fS
40 Hz
SD
522 cm²
40 - 2000 Hz
QTS
0.16
xmax
8.0 mm
SPL1W
96 dB
Bl/√RE
11
Pmax
1000 W