Hertz Mille ML 1650.3 LEGEND

Woofer

6.5″ / 165 mm
Nominal diameter
65 Hz
Resonance
0.52
Q factor
89 dB
Sensitivity
± 5 mm
Linear excursion
250 W
Program Power
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
89.0
dB
Frequency response
40 - 7000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
65.0
Hz
Mechanical quality factor
QMS
5.30
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.52

Large signal parameters

Maximum linear excursion
xmax
5.0
mm
Maximum excursion before damage
xlim
9.0
mm
Air volume displaced at xmax
VD
70
cm³
Power handling
P
125
W
Program power
Pmax
250
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
0.24
mH
VC Diameter
36
mm

Magnet

Force factor
Bl
7.0
N/A
Motor constant
Bl/√RE
3.85
N/√W
Diameter
80
mm
Height
5
mm
Material
Neodymium

Diaphragm

Effective diameter
132
mm
Effective area
SD
140
cm²
Moving mass
MMS
17.5
g
Moving mass (without air load)
MMD
16.3
g
Material
Pressed-pulp cone with cotton fibres

Suspensions

Stiffness
KMS
3.33
N/mm
Compliance
CMS
300
µm/N
Equivalent volume to the compliance
VAS
8.3
L
Mechanical resistance
RMS
1.35
N·s/m

Dimensions

Nominal diameter
6.5
165
mm
Overall diameter
165
mm
Baffle cutout diameter
141
mm
Overall depth
80
mm
Flange thickness
11
mm
Mounting depth
69
mm
Volume occupied by the driver (estimated)
0.45
L
Net weight
1.29
kg
Hertz ML 1650.3 LEGEND SPL & Impedance

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