15″ / 381 mm
Nominal diameter
85 Hz
Resonance
0.94
Q factor
101 dB
Sensitivity
± 0.1 mm
Linear excursion
450 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
100.6
dB
Frequency response
70 - 3500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
85.0
Hz
Mechanical quality factor
QMS
10.63
Electrical quality factor
QES
1.04
Total quality factor
QTS
0.94
Large signal parameters
Maximum linear excursion
xmax
0.1
mm
Air volume displaced at xmax
VD
8.6
cm³
Power handling
P
225
W
Program power
Pmax
450
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.1
Ω
Inductance (1kHz)
LE
0.51
mH
VC Diameter
64
mm
Magnet
Force factor
Bl
12.1
N/A
Motor constant
Bl/√RE
4.92
N/√W
Air gap height
HAG
9.5
mm
Weight
1.588
kg
Diaphragm
Effective diameter
330
mm
Effective area
SD
856
cm²
Moving mass
MMS
47
g
Moving mass (without air load)
MMD
29.7
g
Suspensions
Stiffness
KMS
12.5
N/mm
Compliance
CMS
80
µm/N
Equivalent volume to the compliance
VAS
77.7
L
Mechanical resistance
RMS
2.36
N·s/m
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
385
mm
Baffle cutout diameter
352
mm
Overall depth
155
mm
Volume occupied by the driver
3.62
L
Net weight
5.72
kg
Frame material
Pressed steel
Similar speaker drivers to Eminence BIG BEN
15″Guitar Speaker
fS
82 Hz
SD
824 cm²
60 - 4000 Hz
QTS
0.93
xmax
0.8 mm
SPL1W
98 dB
Bl/√RE
5.27
Pmax
300 W
15″Guitar Speaker
fS
74 Hz
SD
755 cm²
QTS
0.95
xmax
1.0 mm
SPL1W
97 dB
Bl/√RE
4.99
Pmax
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12″Guitar Speaker
fS
82 Hz
SD
520 cm²
80 - 5000 Hz
QTS
1.09
xmax
0.5 mm
SPL1W
97 dB
Bl/√RE
3.56
Pmax
150 W