Wavecor FR070WA03
Mid-range
2.75″ / 70 mm
Nominal diameter
114 Hz
Resonance
0.87
Q factor
82 dB
Sensitivity
20 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
82.3
dB
Frequency response
114 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
114
Hz
Mechanical quality factor
QMS
13.10
Electrical quality factor
QES
0.94
Total quality factor
QTS
0.87
Large signal parameters
Power handling
P
10
W
Program power
Pmax
20
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.07
mH
VC Diameter
22
mm
Winding height
HVC
7
mm
Magnet
Force factor
Bl
2.3
N/A
Motor constant
Bl/√RE
1.24
N/√W
Air gap height
HAG
3
mm
Weight
0.115
kg
Diaphragm
Effective diameter
52
mm
Effective area
SD
21
cm²
Moving mass
MMS
2
g
Moving mass (without air load)
MMD
1.9
g
Suspensions
Stiffness
KMS
1.03
N/mm
Compliance
CMS
970
µm/N
Equivalent volume to the compliance
VAS
0.61
L
Mechanical resistance
RMS
0.11
N·s/m
Dimensions
Nominal diameter
2.75
″
70
mm
Volume occupied by the driver (estimated)
0.11
L
Net weight
0.29
kg
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Similar speaker drivers to Wavecor FR070WA03
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3″Full-range
fS
110 Hz
SD
27 cm²
100 - 20000 Hz
QTS
0.80
xmax
3.4 mm
SPL1W
83 dB
Bl/√RE
1.39
Pmax
50 W
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2.5″Full-range
fS
110 Hz
SD
22 cm²
80 - 20000 Hz
QTS
0.68
xmax
3.1 mm
SPL1W
83 dB
Bl/√RE
1.42
Pmax
50 W