10″ / 250 mm
Nominal diameter
40 Hz
Resonance
0.66
Q factor
87 dB
Sensitivity
± 9 mm
Linear excursion
750 W
Program Power
Discontinued
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
86.5
dB
Frequency response
28 - 300
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
7.90
Electrical quality factor
QES
0.72
Total quality factor
QTS
0.66
Large signal parameters
Maximum linear excursion
xmax
9.0
mm
Maximum excursion before damage
xlim
15.0
mm
Air volume displaced at xmax
VD
312
cm³
Power handling
P
250
W
Program power
Pmax
750
W
Voice Coil
Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
8.0
Ω
Inductance (1kHz, in series)
LE
4.4
mH
VC Diameter
50
mm
Magnet
Force factor (in series)
Bl
15.6
N/A
Motor constant
Bl/√RE
5.52
N/√W
Diaphragm
Effective diameter
212
mm
Effective area
SD
346
cm²
Moving mass
MMS
90
g
Moving mass (without air load)
MMD
85.5
g
Suspensions
Stiffness
KMS
5.56
N/mm
Compliance
CMS
180
µm/N
Equivalent volume to the compliance
VAS
30.6
L
Mechanical resistance
RMS
2.86
N·s/m
Dimensions
Nominal diameter
10
″
250
mm
Volume occupied by the driver (estimated)
1.5
L
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fS
36 Hz
SD
360 cm²
30 - 500 Hz
QTS
0.59
xmax
13.2 mm
SPL1W
87 dB
Bl/√RE
5.98
Pmax
500 W
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12″Subwoofer
fS
35 Hz
SD
578 cm²
20 - 125 Hz
QTS
0.61
xmax
8.8 mm
SPL1W
87 dB
Bl/√RE
9.81
Pmax
800 W