12″ / 300 mm
Nominal diameter
50 Hz
Resonance
0.36
Q factor
98 dB
Sensitivity
± 4.92 mm
Linear excursion
600 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
97.5
dB
Frequency response
50 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
50.0
Hz
Mechanical quality factor
QMS
9.90
Electrical quality factor
QES
0.37
Total quality factor
QTS
0.36
Large signal parameters
Maximum linear excursion
xmax
4.92
mm
Maximum excursion before damage
xlim
14.0
mm
Air volume displaced at xmax
VD
262
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.4
Ω
Inductance (1kHz)
LE
0.42
mH
VC Diameter
65
mm
Winding height
HVC
12.5
mm
Winding material
Aluminium
Former material
Glass Fiber
Magnet
Flux density
B
1.25
T
Force factor
Bl
14.1
N/A
Motor constant
Bl/√RE
6.07
N/√W
Air gap height
HAG
8
mm
Material
Neodymium Slug
Diaphragm
Effective diameter
261
mm
Effective area
SD
533
cm²
Moving mass
MMS
43.4
g
Moving mass (without air load)
MMD
34.6
g
Suspensions
Stiffness
KMS
4.35
N/mm
Compliance
CMS
230
µm/N
Equivalent volume to the compliance
VAS
92.6
L
Mechanical resistance
RMS
1.4
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
315
mm
Baffle cutout diameter
283
mm
Overall depth
141
mm
Flange thickness
12
mm
Mounting depth
129
mm
Volume occupied by the driver
1.9
L
Net weight
2.5
kg
Frame material
Aluminium
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QSpeakers
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fS
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SD
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QTS
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xmax
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SPL1W
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Bl/√RE
5.89
Pmax
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fS
54 Hz
SD
533 cm²
50 - 4000 Hz
QTS
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xmax
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SPL1W
96 dB
Bl/√RE
6.2
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fS
51 Hz
SD
531 cm²
50 - 3000 Hz
QTS
0.41
xmax
4.3 mm
SPL1W
96 dB
Bl/√RE
5.62
Pmax
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