15″ / 380 mm
Nominal diameter
34 Hz
Resonance
0.23
Q factor
96 dB
Sensitivity
± 9.5 mm
Linear excursion
2400 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.5
dB
Frequency response
40 - 2200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
34.0
Hz
Mechanical quality factor
QMS
4.20
Electrical quality factor
QES
0.24
Total quality factor
QTS
0.23
Large signal parameters
Maximum linear excursion
xmax
9.5
mm
Air volume displaced at xmax
VD
808
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
2.7
Ω
Inductance (1kHz)
LE
0.79
mH
VC Diameter
100
mm
Winding material
Copper
Magnet
Force factor
Bl
18.0
N/A
Motor constant
Bl/√RE
11.0
N/√W
Material
Ferrite
Diaphragm
Effective diameter
329
mm
Effective area
SD
850
cm²
Moving mass
MMS
135
g
Moving mass (without air load)
MMD
117.5
g
Suspensions
Stiffness
KMS
6.17
N/mm
Compliance
CMS
162
µm/N
Equivalent volume to the compliance
VAS
191
L
Mechanical resistance
RMS
6.87
N·s/m
Spider material
Double Silicon
Dimensions
Nominal diameter
15
″
380
mm
Overall diameter
393
mm
Baffle cutout diameter
354
mm
Overall depth
181
mm
Flange thickness
12
mm
Mounting depth
169
mm
Volume occupied by the driver (estimated)
5.4
L
Net weight
11.2
kg
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QSpeakers
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fS
32 Hz
SD
1195 cm²
30 - 1000 Hz
QTS
0.22
xmax
19.5 mm
SPL1W
95 dB
Bl/√RE
16
Pmax
3400 W
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12″Coaxial
fS
35 Hz
SD
530 cm²
40 - 20000 Hz
QTS
0.21
xmax
6.0 mm
SPL1W
97 dB
Bl/√RE
6.98
Pmax
700 W