Hertz DCX 165.3
2 Way
6.5″ / 165 mm
Nominal diameter
68 Hz
Resonance
0.85
Q factor
89 dB
Sensitivity
± 2 mm
Linear excursion
120 W
Program Power
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Specifications
Sensitivity (1W, 1m, infinite baffle)
SPL1W
88.8
dB
Frequency response
60 - 21000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
68.0
Hz
Mechanical quality factor
QMS
7.54
Electrical quality factor
QES
0.96
Total quality factor
QTS
0.85
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
29
cm³
Power handling
P
60
W
Program power
Pmax
120
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz, estimated)
LE
0.19
mH
VC Diameter
25
mm
Magnet
Force factor
Bl
4.0
N/A
Motor constant
Bl/√RE
2.2
N/√W
Material
High density flux ferrite
Diaphragm
Effective diameter
135
mm
Effective area
SD
143
cm²
Moving mass
MMS
11
g
Moving mass (without air load)
MMD
9.8
g
Material
Water-repellent pressed paper
Suspensions
Stiffness
KMS
2.04
N/mm
Compliance
CMS
490
µm/N
Equivalent volume to the compliance
VAS
14.3
L
Mechanical resistance
RMS
0.62
N·s/m
Dimensions
Nominal diameter
6.5
″
165
mm
Volume occupied by the driver (estimated)
0.5
L
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fS
67 Hz
SD
142 cm²
50 - 23000 Hz
QTS
0.81
xmax
2.0 mm
SPL1W
89 dB
Bl/√RE
2.31
Pmax
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fS
72 Hz
SD
214 cm²
50 - 3000 Hz
QTS
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xmax
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SPL1W
89 dB
Bl/√RE
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Pmax
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fS
67 Hz
SD
214 cm²
50 - 3000 Hz
QTS
0.76
xmax
3.8 mm
SPL1W
90 dB
Bl/√RE
2.94
Pmax
150 W