Wavecor WF120BD04/08

4Ω GF4Ω P
8Ω GF
8Ω P

Mid-range

4.75″ / 121 mm
Nominal diameter
72 Hz
Resonance
0.45
Q factor
85 dB
Sensitivity
100 W
Program Power
Wavecor WF120BD04/08 Mid-rangeWavecor WF120BD04/08 Mid-range
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
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
Sensitivity (1W, 1m, infinite baffle)
SPL1W
85.2
dB
Frequency response
71 - 4000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
71.5
Hz
Mechanical quality factor
QMS
5.90
Electrical quality factor
QES
0.49
Total quality factor
QTS
0.45

Large signal parameters

Power handling
P
50
W
Program power
Pmax
100
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
0.14
mH
VC Diameter
26
mm
Winding height
HVC
12
mm

Magnet

Force factor
Bl
5.5
N/A
Motor constant
Bl/√RE
2.25
N/√W
Air gap height
HAG
4
mm
Weight
0.43
kg

Diaphragm

Effective diameter
83
mm
Effective area
SD
54
cm²
Moving mass
MMS
6.3
g
Moving mass (without air load)
MMD
5.9
g

Suspensions

Stiffness
KMS
0.97
N/mm
Compliance
CMS
1030
µm/N
Equivalent volume to the compliance
VAS
4.25
L
Mechanical resistance
RMS
0.42
N·s/m

Dimensions

Nominal diameter
4.75
″
121
mm
Volume occupied by the driver (estimated)
0.41
L
Net weight
1.04
kg
SPL & Impedance
Wavecor WF120BD04/08 SPL & Impedance
Wavecor WF120BD04/08 Dimensions
DatasheetDatasheet

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