Eminence BIG BEN

Guitar Speaker

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
Discard
Apply
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
Winding material
Copper
Former material
Polyimide

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
Material
Ferrite

Diaphragm

Effective diameter
330
mm
Effective area
SD
856
cm²
Moving mass
MMS
47
g
Moving mass (without air load)
MMD
29.7
g
Material
Paper

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
Surround material
Paper

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
Eminence BIG BEN SPL & Impedance

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