Hertz Cento C 165 F
Woofer
6.5″ / 165 mm
Nominal diameter
80 Hz
Resonance
0.8
Q factor
88 dB
Sensitivity
± 3.2 mm
Linear excursion
180 W
Program Power
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
88.4
dB
Frequency response
65 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
80.0
Hz
Mechanical quality factor
QMS
3.40
Electrical quality factor
QES
1.00
Total quality factor
QTS
0.80
Large signal parameters
Maximum linear excursion
xmax
3.2
mm
Maximum excursion before damage
xlim
3.5
mm
Air volume displaced at xmax
VD
45
cm³
Power handling
P
70
W
Program power
Pmax
180
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
2.7
Ω
Inductance (1kHz)
LE
0.15
mH
VC Diameter
25
mm
Magnet
Force factor
Bl
3.9
N/A
Motor constant
Bl/√RE
2.37
N/√W
Diameter
90
mm
Height
10
mm
Material
Ferrite
Diaphragm
Effective diameter
134
mm
Effective area
SD
142
cm²
Moving mass
MMS
12
g
Moving mass (without air load)
MMD
10.8
g
Material
Semi-Pressed paper with Mica
Suspensions
Stiffness
KMS
3.03
N/mm
Compliance
CMS
330
µm/N
Equivalent volume to the compliance
VAS
9.4
L
Mechanical resistance
RMS
1.77
N·s/m
Dimensions
Nominal diameter
6.5
″
165
mm
Overall diameter
165
mm
Baffle cutout diameter
141
mm
Overall depth
51
mm
Flange thickness
7
mm
Mounting depth
44
mm
Volume occupied by the driver (estimated)
0.23
L
Net weight
0.72
kg
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Export this driver to a simulation software:
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6.5″Mid Bass
fS
74 Hz
SD
133 cm²
60 - 3500 Hz
QTS
0.74
xmax
3.7 mm
SPL1W
88 dB
Bl/√RE
2.61
Pmax
150 W
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Hertz CX 6904 Ω
6 x 9″3 Way
fS
70 Hz
SD
152 cm²
40 - 23000 Hz
QTS
0.67
xmax
3.5 mm
SPL1W
89 dB
Bl/√RE
2.7
Pmax
200 W