12″ / 320 mm
Nominal diameter
55 Hz
Resonance
0.44
Q factor
95 dB
Sensitivity
± 5 mm
Linear excursion
450 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.8
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
55.0
Hz
Mechanical quality factor
QMS
3.87
Electrical quality factor
QES
0.49
Total quality factor
QTS
0.44
Large signal parameters
Maximum linear excursion
xmax
5.0
mm
Air volume displaced at xmax
VD
274
cm³
Power handling
P
220
W
Program power
Pmax
450
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
0.95
mH
VC Diameter
50
mm
Winding height
HVC
13.5
mm
Former material
Aluminum
Magnet
Force factor
Bl
13.9
N/A
Motor constant
Bl/√RE
5.93
N/√W
Air gap height
HAG
8
mm
Diaphragm
Effective diameter
264
mm
Effective area
SD
547
cm²
Moving mass
MMS
50
g
Moving mass (without air load)
MMD
41
g
Material
Doped cellulose fiber
Suspensions
Stiffness
KMS
5.95
N/mm
Compliance
CMS
168
µm/N
Equivalent volume to the compliance
VAS
70
L
Mechanical resistance
RMS
4.46
N·s/m
Surround material
Nomex Fabric
Spider material
Nomex Fabric
Dimensions
Nominal diameter
12
″
320
mm
Overall diameter
315
mm
Baffle cutout diameter
282
mm
Overall depth
130
mm
Flange thickness
13
mm
Mounting depth
117
mm
Volume occupied by the driver (estimated)
1.9
L
Net weight
3.75
kg
Frame material
Aluminium
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SpeakerbenchSimilar woofers to Ciare FXI12.50W
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12″Coaxial
fS
55 Hz
SD
539 cm²
55 - 20000 Hz
QTS
0.43
xmax
7.4 mm
SPL1W
95 dB
Bl/√RE
6.12
Pmax
500 W
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12″Subwoofer
fS
55 Hz
SD
540 cm²
50 - 4000 Hz
QTS
0.47
xmax
7.0 mm
SPL1W
94 dB
Bl/√RE
6.57
Pmax
1200 W