Hertz MPK 130.3 PRO
2 Way Kit
5″ / 130 mm
Nominal diameter
90 Hz
Resonance
0.64
Q factor
88 dB
Sensitivity
± 2.75 mm
Linear excursion
200 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.0
dB
Frequency response
60 - 22500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
90.0
Hz
Mechanical quality factor
QMS
5.10
Electrical quality factor
QES
0.74
Total quality factor
QTS
0.64
Large signal parameters
Maximum linear excursion
xmax
2.75
mm
Air volume displaced at xmax
VD
26
cm³
Power handling
P
100
W
Program power
Pmax
200
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.1
Ω
Inductance (1kHz)
LE
0.25
mH
VC Diameter
25
mm
Magnet
Force factor
Bl
5.3
N/A
Motor constant
Bl/√RE
3.01
N/√W
Material
High density flux ferrite
Diaphragm
Effective diameter
110
mm
Effective area
SD
94
cm²
Moving mass
MMS
10.5
g
Moving mass (without air load)
MMD
9.9
g
Material
Pressed-pulp cone with cotton fibers
Suspensions
Stiffness
KMS
4.17
N/mm
Compliance
CMS
240
µm/N
Equivalent volume to the compliance
VAS
3
L
Mechanical resistance
RMS
1.16
N·s/m
Dimensions
Nominal diameter
5
″
130
mm
Volume occupied by the driver (estimated)
0.27
L
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SD
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SD
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SD
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QTS
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