Hertz HMX 6.5
2 Way
6.5″ / 165 mm
Nominal diameter
65 Hz
Resonance
0.7
Q factor
88 dB
Sensitivity
± 3.65 mm
Linear excursion
150 W
Program Power
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Specifications
Sensitivity (1W, 1m, infinite baffle)
SPL1W
87.5
dB
Frequency response
50 - 25000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
65.0
Hz
Mechanical quality factor
QMS
11.50
Electrical quality factor
QES
0.75
Total quality factor
QTS
0.70
Large signal parameters
Maximum linear excursion
xmax
3.65
mm
Air volume displaced at xmax
VD
45
cm³
Power handling
P
75
W
Program power
Pmax
150
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.53
mH
VC Diameter
25
mm
Magnet
Force factor
Bl
5.2
N/A
Motor constant
Bl/√RE
2.78
N/√W
Material
High density flux ferrite
Diaphragm
Effective diameter
125
mm
Effective area
SD
125
cm²
Moving mass
MMS
14
g
Moving mass (without air load)
MMD
12.9
g
Material
Polypropylene with UV inhibitors
Suspensions
Stiffness
KMS
2.5
N/mm
Compliance
CMS
400
µm/N
Equivalent volume to the compliance
VAS
8.8
L
Mechanical resistance
RMS
0.5
N·s/m
Dimensions
Nominal diameter
6.5
″
165
mm
Volume occupied by the driver (estimated)
0.5
L
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6.5″2 Way
fS
65 Hz
SD
125 cm²
50 - 25000 Hz
QTS
0.70
xmax
3.7 mm
SPL1W
88 dB
Bl/√RE
2.78
Pmax
150 W
.jpg.webp)
6.5″2 Way
fS
65 Hz
SD
125 cm²
50 - 25000 Hz
QTS
0.70
xmax
3.7 mm
SPL1W
88 dB
Bl/√RE
2.78
Pmax
150 W
.jpg.webp)
6.5″2 Way
fS
65 Hz
SD
125 cm²
50 - 25000 Hz
QTS
0.70
xmax
3.7 mm
SPL1W
88 dB
Bl/√RE
2.78
Pmax
150 W