12″ / 300 mm
Nominal diameter
43 Hz
Resonance
1.05
Q factor
88 dB
Sensitivity
± 10.8 mm
Linear excursion
800 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.1
dB
Frequency response
20 - 125
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
43.0
Hz
Mechanical quality factor
QMS
13.79
Electrical quality factor
QES
1.02
Total quality factor
QTS
1.05
Large signal parameters
Maximum linear excursion
xmax
10.8
mm
Air volume displaced at xmax
VD
562
cm³
Power handling
P
400
W
Program power
Pmax
800
W
Voice Coil
Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
5.8
Ω
Inductance (1kHz, in series)
LE
4.85
mH
VC Diameter
48
mm
Winding height
HVC
31.6
mm
Winding material
Copper
Magnet
Flux density
B
0.7381
T
Force factor (in series)
Bl
16.2
N/A
Motor constant
Bl/√RE
6.73
N/√W
Air gap height
HAG
10
mm
Weight
2.1
kg
Material
Ferrite
Diaphragm
Effective diameter
257
mm
Effective area
SD
520
cm²
Moving mass
MMS
166
g
Moving mass (without air load)
MMD
157.2
g
Material
IMPP
Suspensions
Stiffness
KMS
13.16
N/mm
Compliance
CMS
76
µm/N
Equivalent volume to the compliance
VAS
32.7
L
Mechanical resistance
RMS
3.39
N·s/m
Surround material
Fiber Reinforced Elastic Polymer
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
327
mm
Baffle cutout diameter
283
mm
Overall depth
169
mm
Flange thickness
18
mm
Mounting depth
151
mm
Volume occupied by the driver
1.67
L
Net weight
6.2
kg
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Export this driver to a simulation software:
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QSpeakers
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MfbLabs
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SD
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SPL1W
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SD
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SD
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