Wavecor SW118WA02
4Ω
8Ω
4.5″ / 114 mm
Nominal diameter
60 Hz
Resonance
0.47
Q factor
84 dB
Sensitivity
± 4 mm
Linear excursion
80 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
83.5
dB
Frequency response
60 - 1200
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
60.0
Hz
Mechanical quality factor
QMS
8.10
Electrical quality factor
QES
0.50
Total quality factor
QTS
0.47
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
20
cm³
Power handling
P
40
W
Program power
Pmax
80
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.3
Ω
Inductance (1kHz)
LE
0.78
mH
VC Diameter
26
mm
Winding height
HVC
12
mm
Magnet
Force factor
Bl
5.9
N/A
Motor constant
Bl/√RE
2.35
N/√W
Air gap height
HAG
4
mm
Diaphragm
Effective diameter
79
mm
Effective area
SD
49
cm²
Moving mass
MMS
7.3
g
Moving mass (without air load)
MMD
7
g
Suspensions
Stiffness
KMS
1.03
N/mm
Compliance
CMS
970
µm/N
Equivalent volume to the compliance
VAS
3.3
L
Mechanical resistance
RMS
0.34
N·s/m
Dimensions
Nominal diameter
4.5
″
114
mm
Volume occupied by the driver (estimated)
0.31
L
Net weight
0.8
kg
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4″Woofer
fS
60 Hz
SD
53 cm²
60 - 15000 Hz
QTS
0.41
xmax
2.5 mm
SPL1W
84 dB
Bl/√RE
2.25
Pmax
40 W
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4″Woofer
fS
63 Hz
SD
54 cm²
63 - 11000 Hz
QTS
0.42
xmax
4.1 mm
SPL1W
84 dB
Bl/√RE
2.24
Pmax
70 W
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