Eminence THE COPPERHEAD

Guitar Speaker

10″ / 254 mm
Nominal diameter
105 Hz
Resonance
0.98
Q factor
99 dB
Sensitivity
± 0.1 mm
Linear excursion
150 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
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
98.5
dB
Frequency response
80 - 4500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
105
Hz
Mechanical quality factor
QMS
13.27
Electrical quality factor
QES
1.05
Total quality factor
QTS
0.98

Large signal parameters

Maximum linear excursion
xmax
0.1
mm
Air volume displaced at xmax
VD
3.7
cm³
Power handling
P
75
W
Program power
Pmax
150
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.6
Ω
Inductance (1kHz)
LE
0.37
mH
VC Diameter
38
mm
Winding material
Copper
Former material
Polyimide

Magnet

Force factor
Bl
8.8
N/A
Motor constant
Bl/√RE
3.19
N/√W
Air gap height
HAG
7.9
mm
Weight
0.567
kg
Material
Ferrite

Diaphragm

Effective diameter
216
mm
Effective area
SD
366
cm²
Moving mass
MMS
16
g
Moving mass (without air load)
MMD
11.1
g
Material
Paper

Suspensions

Stiffness
KMS
7.14
N/mm
Compliance
CMS
140
µm/N
Equivalent volume to the compliance
VAS
27
L
Mechanical resistance
RMS
0.8
N·s/m
Surround material
Paper

Dimensions

Nominal diameter
10
254
mm
Overall diameter
257
mm
Baffle cutout diameter
232
mm
Overall depth
107
mm
Volume occupied by the driver
0.95
L
Net weight
2.04
kg
Frame material
Pressed steel
Eminence THE COPPERHEAD SPL & Impedance

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