Eminence EPS-15C

Guitar Speaker

15″ / 381 mm
Nominal diameter
42 Hz
Resonance
0.31
Q factor
98 dB
Sensitivity
± 3.3 mm
Linear excursion
600 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
98.1
dB
Frequency response
42 - 2900
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
14.41
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.31

Large signal parameters

Maximum linear excursion
xmax
3.3
mm
Air volume displaced at xmax
VD
285
cm³
Power handling
P
300
W
Program power
Pmax
600
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.6
Ω
Inductance (1kHz)
LE
0.53
mH
VC Diameter
76
mm
Winding material
Copper
Former material
Polyimide

Magnet

Force factor
Bl
15.28
N/A
Motor constant
Bl/√RE
8.09
N/√W
Air gap height
HAG
9.3
mm
Weight
0.312
kg
Material
Neodymium

Diaphragm

Effective diameter
332
mm
Effective area
SD
865
cm²
Moving mass
MMS
80
g
Moving mass (without air load)
MMD
62.3
g
Material
Paper

Suspensions

Stiffness
KMS
5.56
N/mm
Compliance
CMS
180
µm/N
Equivalent volume to the compliance
VAS
188
L
Mechanical resistance
RMS
1.47
N·s/m
Surround material
Cloth

Dimensions

Nominal diameter
15
381
mm
Overall diameter
389
mm
Baffle cutout diameter
356
mm
Overall depth
173
mm
Volume occupied by the driver
2.54
L
Net weight
3.58
kg
Frame material
Die-cast aluminum
Eminence EPS-15C SPL & Impedance

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