Dayton Audio Signature SIG180-4

Woofer

8″ / 180 mm
Nominal diameter
41 Hz
Resonance
0.38
Q factor
87 dB
Sensitivity
± 5 mm
Linear excursion
160 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
87.4
dB
Frequency response
40 - 4000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
40.5
Hz
Mechanical quality factor
QMS
5.19
Electrical quality factor
QES
0.41
Total quality factor
QTS
0.38

Large signal parameters

Maximum linear excursion
xmax
5.0
mm
Air volume displaced at xmax
VD
72
cm³
Power handling
P
80
W
Program power
Pmax
160
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.7
Ω
Inductance (1kHz)
LE
0.47
mH
VC Diameter
32
mm
Winding material
Copper
Former material
Glass fiber

Magnet

Force factor
Bl
6.6
N/A
Motor constant
Bl/√RE
3.43
N/√W
Material
Ferrite

Diaphragm

Effective diameter
135
mm
Effective area
SD
143
cm²
Moving mass
MMS
19.2
g
Moving mass (without air load)
MMD
17.9
g
Material
Aluminum

Suspensions

Stiffness
KMS
1.24
N/mm
Compliance
CMS
810
µm/N
Equivalent volume to the compliance
VAS
23.2
L
Mechanical resistance
RMS
0.94
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
8
180
mm
Overall diameter
180
mm
Baffle cutout diameter
145
mm
Overall depth
81
mm
Volume occupied by the driver (estimated)
0.54
L
Frame material
Cast Aluminium
Dayton Audio SIG180-4 Impedance
Dayton Audio SIG180-4 SPL

Export this driver to a simulation software:

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