Eminence KL3012CX-8

Coaxial

12″ / 305 mm
Nominal diameter
42 Hz
Resonance
0.3
Q factor
96 dB
Sensitivity
± 7.47 mm
Linear excursion
800 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
95.9
dB
Frequency response
40 - 3200
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
8.37
Electrical quality factor
QES
0.31
Total quality factor
QTS
0.30

Large signal parameters

Maximum linear excursion
xmax
7.47
mm
Maximum excursion before damage
xlim
17.84
mm
Air volume displaced at xmax
VD
407
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
0.61
mH
VC Diameter
76
mm
Winding material
Copper
Former material
Glass Fiber

Magnet

Force factor
Bl
16.02
N/A
Motor constant
Bl/√RE
6.71
N/√W
Air gap height
HAG
9.27
mm
Weight
0.312
kg
Material
Neodymium

Diaphragm

Effective diameter
264
mm
Effective area
SD
545
cm²
Moving mass
MMS
54
g
Moving mass (without air load)
MMD
45
g
Material
Treated paper

Suspensions

Stiffness
KMS
3.7
N/mm
Compliance
CMS
270
µm/N
Equivalent volume to the compliance
VAS
112
L
Mechanical resistance
RMS
1.7
N·s/m
Surround material
Sealed cloth

Dimensions

Nominal diameter
12
305
mm
Overall diameter
314
mm
Baffle cutout diameter
281
mm
Overall depth
143
mm
Volume occupied by the driver
1.53
L
Net weight
3.31
kg
Frame material
Die-cast aluminum
Eminence KL3012CX-8 SPL & Impedance

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