Hertz Cento CX 100
2 Way
4″ / 100 mm
Nominal diameter
100 Hz
Resonance
0.72
Q factor
87 dB
Sensitivity
± 2.3 mm
Linear excursion
80 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.5
dB
Frequency response
80 - 22
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
100
Hz
Mechanical quality factor
QMS
3.10
Electrical quality factor
QES
0.94
Total quality factor
QTS
0.72
Large signal parameters
Maximum linear excursion
xmax
2.3
mm
Air volume displaced at xmax
VD
14
cm³
Power handling
P
40
W
Program power
Pmax
80
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
0.18
mH
VC Diameter
25
mm
Magnet
Force factor
Bl
3.5
N/A
Motor constant
Bl/√RE
1.96
N/√W
Diameter
70
mm
Material
Ferrite
Diaphragm
Effective diameter
86
mm
Effective area
SD
59
cm²
Moving mass
MMS
5.1
g
Moving mass (without air load)
MMD
4.8
g
Material
Semi-pressed paper + Mica
Suspensions
Stiffness
KMS
2.63
N/mm
Compliance
CMS
380
µm/N
Equivalent volume to the compliance
VAS
1.86
L
Mechanical resistance
RMS
1.03
N·s/m
Dimensions
Nominal diameter
4
″
100
mm
Overall diameter
103
mm
Baffle cutout diameter
93
mm
Overall depth
58
mm
Flange thickness
14
mm
Mounting depth
44
mm
Volume occupied by the driver (estimated)
0.22
L
Net weight
0.96
kg
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SpeakerbenchSimilar speaker drivers to Hertz CX 100
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4″Coaxial
fS
113 Hz
SD
56 cm²
110 - 18000 Hz
QTS
0.83
xmax
4.0 mm
SPL1W
86 dB
Bl/√RE
2.17
Pmax
200 W
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4″Mid-range
fS
120 Hz
SD
58 cm²
105 - 10000 Hz
QTS
0.63
xmax
2.6 mm
SPL1W
88 dB
Bl/√RE
2.23
Pmax
110 W