Wavecor WF120BD12

4Ω
8Ω

Mid Bass

4.75″ / 120 mm
Nominal diameter
58 Hz
Resonance
0.46
Q factor
84 dB
Sensitivity
± 3 mm
Linear excursion
Wavecor WF120BD12 Mid BassWavecor WF120BD12 Mid BassWavecor WF120BD12 Mid Bass
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
83.7
dB
Frequency response
57 - 4000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
57.5
Hz
Mechanical quality factor
QMS
9.30
Electrical quality factor
QES
0.49
Total quality factor
QTS
0.46

Large signal parameters

Maximum linear excursion
xmax
3.0
mm
Air volume displaced at xmax
VD
14
cm³

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.9
Ω
Inductance (1kHz, estimated)
LE
0.25
mH
VC Diameter
25
mm
Winding height
HVC
10
mm
Former material
Black fiber glass

Magnet

Force factor
Bl
5.3
N/A
Motor constant
Bl/√RE
2.18
N/√W
Air gap height
HAG
4
mm
Diameter
90
mm
Weight
0.44
kg

Diaphragm

Effective diameter
78
mm
Effective area
SD
48
cm²
Moving mass
MMS
6.4
g
Moving mass (without air load)
MMD
6.1
g
Material
Kevlar/Carbon fiber

Suspensions

Stiffness
KMS
0.83
N/mm
Compliance
CMS
1200
µm/N
Equivalent volume to the compliance
VAS
3.9
L
Mechanical resistance
RMS
0.25
N·s/m

Dimensions

Nominal diameter
4.75
″
120
mm
Overall diameter
120
mm
Baffle cutout diameter
98
mm
Mounting depth
64
mm
Volume occupied by the driver (estimated)
0.44
L
Net weight
1.1
kg
Frame material
Die cast aluminum
Impedance
SPL
Wavecor WF120BD12 Impedance
Wavecor WF120BD12 SPL
Wavecor WF120BD12 Dimensions
DatasheetDatasheet

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