12″ / 300 mm
Nominal diameter
55 Hz
Resonance
0.43
Q factor
95 dB
Sensitivity
± 7.37 mm
Linear excursion
500 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.4
dB
Frequency response
55 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
55.0
Hz
Mechanical quality factor
QMS
7.40
Electrical quality factor
QES
0.46
Total quality factor
QTS
0.43
Large signal parameters
Maximum linear excursion
xmax
7.37
mm
Maximum excursion before damage
xlim
15.25
mm
Air volume displaced at xmax
VD
397
cm³
Power handling
P
250
W
Program power
Pmax
500
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
0.62
mH
VC Diameter
65
mm
Winding height
HVC
17.4
mm
Winding material
Aluminium
Former material
Glass Fiber
Magnet
Flux density
B
1.15
T
Force factor
Bl
14.1
N/A
Motor constant
Bl/√RE
6.12
N/√W
Air gap height
HAG
8
mm
Material
Ferrite Ring
Diaphragm
Effective diameter
262
mm
Effective area
SD
539
cm²
Moving mass
MMS
50.2
g
Moving mass (without air load)
MMD
41.3
g
Suspensions
Stiffness
KMS
5.88
N/mm
Compliance
CMS
170
µm/N
Equivalent volume to the compliance
VAS
67.7
L
Mechanical resistance
RMS
2.3
N·s/m
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
316
mm
Baffle cutout diameter
282
mm
Overall depth
162
mm
Flange thickness
12
mm
Mounting depth
150
mm
Volume occupied by the driver
2.15
L
Net weight
5.2
kg
Frame material
Aluminium
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12″Subwoofer
fS
54 Hz
SD
533 cm²
50 - 4000 Hz
QTS
0.40
xmax
4.9 mm
SPL1W
96 dB
Bl/√RE
6.2
Pmax
600 W