Dayton Audio Signature SIG120-4

Woofer

5″ / 123 mm
Nominal diameter
75 Hz
Resonance
0.43
Q factor
86 dB
Sensitivity
± 4 mm
Linear excursion
80 W
Program Power
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
86.1
dB
Frequency response
75 - 8500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
74.6
Hz
Mechanical quality factor
QMS
4.84
Electrical quality factor
QES
0.47
Total quality factor
QTS
0.43

Large signal parameters

Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
23
cm³
Power handling
P
40
W
Program power
Pmax
80
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.7
Ω
Inductance (1kHz)
LE
0.22
mH
VC Diameter
27
mm
Winding material
Copper
Former material
Glass fiber

Magnet

Force factor
Bl
5.0
N/A
Motor constant
Bl/√RE
2.6
N/√W
Material
Ferrite

Diaphragm

Effective diameter
85
mm
Effective area
SD
56
cm²
Moving mass
MMS
6.7
g
Moving mass (without air load)
MMD
6.4
g
Material
Aluminum

Suspensions

Stiffness
KMS
1.47
N/mm
Compliance
CMS
680
µm/N
Equivalent volume to the compliance
VAS
3.1
L
Mechanical resistance
RMS
0.65
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
5
123
mm
Overall diameter
123
mm
Baffle cutout diameter
95
mm
Overall depth
56
mm
Volume occupied by the driver (estimated)
0.2
L
Frame material
Cast Aluminium
Dayton Audio SIG120-4 Impedance
Dayton Audio SIG120-4 SPL

Export this driver to a simulation software:

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