12″ / 305 mm
Nominal diameter
23 Hz
Resonance
0.33
Q factor
88 dB
Sensitivity
± 13 mm
Linear excursion
1000 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.2
dB
Frequency response
25 - 100
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
23.0
Hz
Mechanical quality factor
QMS
11.70
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
13.0
mm
Maximum excursion before damage
xlim
22.0
mm
Air volume displaced at xmax
VD
659
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
1.09
mH
VC Diameter
64
mm
Winding material
Copper
Former material
Polyimide
Magnet
Force factor
Bl
13.36
N/A
Motor constant
Bl/√RE
7.58
N/√W
Air gap height
HAG
9.5
mm
Weight
4.536
kg
Material
Ferrite
Diaphragm
Effective diameter
254
mm
Effective area
SD
507
cm²
Moving mass
MMS
136
g
Moving mass (without air load)
MMD
127.7
g
Material
Kevlar-reinforced paper
Suspensions
Stiffness
KMS
2.78
N/mm
Compliance
CMS
360
µm/N
Equivalent volume to the compliance
VAS
128
L
Mechanical resistance
RMS
1.68
N·s/m
Surround material
Foam
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
313
mm
Baffle cutout diameter
280
mm
Overall depth
164
mm
Volume occupied by the driver
3.09
L
Net weight
9.98
kg
Frame material
12-spoke die-cast aluminum
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QSpeakers
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fS
24 Hz
SD
507 cm²
24 - 2000 Hz
QTS
0.33
xmax
5.5 mm
SPL1W
88 dB
Bl/√RE
6.57
Pmax
240 W
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12″Subwoofer
fS
22 Hz
SD
507 cm²
25 - 100 Hz
QTS
0.38
xmax
13.0 mm
SPL1W
87 dB
Bl/√RE
7.24
Pmax
800 W
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12″Woofer
fS
24 Hz
SD
507 cm²
25 - 2500 Hz
QTS
0.31
xmax
5.5 mm
SPL1W
89 dB
Bl/√RE
6.32
Pmax
240 W