Morel VIRTUS MW 4
Woofer
4″ / 104 mm
Nominal diameter
80 Hz
Resonance
0.55
Q factor
86 dB
Sensitivity
± 2 mm
Linear excursion
200 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.5
dB
Frequency response
70 - 4500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
80.0
Hz
Mechanical quality factor
QMS
2.00
Electrical quality factor
QES
0.76
Total quality factor
QTS
0.55
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
13
cm³
Power handling
P
100
W
Program power
Pmax
200
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.0
Ω
Inductance (1kHz)
LE
0.23
mH
VC Diameter
54
mm
Winding height
HVC
8
mm
Winding material
Hexatech™ Aluminum
Former material
Aluminum
Magnet
Flux density
B
0.48
T
Force factor
Bl
3.33
N/A
Motor constant
Bl/√RE
1.92
N/√W
Air gap height
HAG
4
mm
Material
Double ferrite rear vented
Diaphragm
Effective diameter
90
mm
Effective area
SD
64
cm²
Moving mass
MMS
6
g
Moving mass (without air load)
MMD
5.6
g
Material
Composite cellular fiber
Suspensions
Stiffness
KMS
1.37
N/mm
Compliance
CMS
730
µm/N
Equivalent volume to the compliance
VAS
4.17
L
Mechanical resistance
RMS
1.42
N·s/m
Dimensions
Nominal diameter
4
″
104
mm
Overall diameter
104
mm
Baffle cutout diameter
95
mm
Mounting depth
50
mm
Volume occupied by the driver (estimated)
0.21
L
Net weight
0.54
kg
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fS
73 Hz
SD
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70 - 20000 Hz
QTS
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SPL1W
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Bl/√RE
1.84
Pmax
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SD
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fS
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SD
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QTS
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SPL1W
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