12″ / 305 mm
Nominal diameter
19 Hz
Resonance
0.4
Q factor
88 dB
Sensitivity
± 11 mm
Linear excursion
400 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.7
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
19.0
Hz
Mechanical quality factor
QMS
5.10
Electrical quality factor
QES
0.43
Total quality factor
QTS
0.40
Large signal parameters
Maximum linear excursion
xmax
11.0
mm
Air volume displaced at xmax
VD
559
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
6
Ω
DC resistance
RE
4.2
Ω
Inductance (1kHz)
LE
1.8
mH
VC Diameter
76
mm
Winding height
HVC
28
mm
Magnet
Flux density
B
0.9
T
Force factor
Bl
10.7
N/A
Motor constant
Bl/√RE
5.22
N/√W
Air gap height
HAG
6
mm
Weight
2.1
kg
Diaphragm
Effective diameter
254
mm
Effective area
SD
508
cm²
Moving mass
MMS
99
g
Moving mass (without air load)
MMD
90.9
g
Suspensions
Stiffness
KMS
1.41
N/mm
Compliance
CMS
710
µm/N
Equivalent volume to the compliance
VAS
260
L
Mechanical resistance
RMS
2.3
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Volume occupied by the driver (estimated)
2.6
L
Net weight
6.02
kg
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fS
20 Hz
SD
829 cm²
20 - 200 Hz
QTS
0.48
xmax
16.0 mm
SPL1W
87 dB
Bl/√RE
8.01
Pmax
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15″Subwoofer
fS
18 Hz
SD
850 cm²
19 - 200 Hz
QTS
0.39
xmax
9.3 mm
SPL1W
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Bl/√RE
8.48
Pmax
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10″Woofer
fS
20 Hz
SD
330 cm²
QTS
0.41
xmax
6.5 mm
SPL1W
88 dB
Bl/√RE
3.5
Pmax
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