15″ / 387 mm
Nominal diameter
33 Hz
Resonance
0.47
Q factor
91 dB
Sensitivity
± 6 mm
Linear excursion
550 W
Program Power
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Parts Express
$$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
91.2
dB
Frequency response
25 - 2100
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
32.9
Hz
Mechanical quality factor
QMS
3.59
Electrical quality factor
QES
0.55
Total quality factor
QTS
0.47
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
494
cm³
Power handling
P
275
W
Program power
Pmax
550
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.1
Ω
Inductance (1kHz)
LE
2.49
mH
VC Diameter
51
mm
Winding material
Aluminum
Magnet
Force factor
Bl
20.2
N/A
Motor constant
Bl/√RE
7.58
N/√W
Weight
2.126
kg
Diaphragm
Effective diameter
324
mm
Effective area
SD
824
cm²
Moving mass
MMS
151.8
g
Moving mass (without air load)
MMD
135.1
g
Material
Poly-Mica
Suspensions
Stiffness
KMS
6.47
N/mm
Compliance
CMS
155
µm/N
Equivalent volume to the compliance
VAS
153
L
Mechanical resistance
RMS
8.74
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
15
″
387
mm
Overall diameter
387
mm
Baffle cutout diameter
349
mm
Mounting depth
140
mm
Volume occupied by the driver (estimated)
1.0
L
Net weight
2.495
kg
Frame material
Die Cast Aluminum
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SD
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