Dayton Audio Signature SIG225-4

Woofer

8″ / 225 mm
Nominal diameter
40 Hz
Resonance
0.43
Q factor
88 dB
Sensitivity
± 6 mm
Linear excursion
200 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
88.0
dB
Frequency response
39 - 4500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
40.0
Hz
Mechanical quality factor
QMS
8.87
Electrical quality factor
QES
0.45
Total quality factor
QTS
0.43

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
133
cm³
Power handling
P
100
W
Program power
Pmax
200
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.9
Ω
Inductance (1kHz)
LE
0.49
mH
VC Diameter
51
mm
Winding material
Copper
Former material
Glass fiber

Magnet

Force factor
Bl
9.0
N/A
Motor constant
Bl/√RE
4.56
N/√W
Material
Ferrite

Diaphragm

Effective diameter
168
mm
Effective area
SD
221
cm²
Moving mass
MMS
36.9
g
Moving mass (without air load)
MMD
34.4
g
Material
Aluminum

Suspensions

Stiffness
KMS
2.33
N/mm
Compliance
CMS
430
µm/N
Equivalent volume to the compliance
VAS
29.7
L
Mechanical resistance
RMS
1.05
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
8
225
mm
Overall diameter
225
mm
Baffle cutout diameter
190
mm
Overall depth
102
mm
Volume occupied by the driver (estimated)
0.99
L
Frame material
Cast Aluminium
Dayton Audio SIG225-4 Impedance
Dayton Audio SIG225-4 SPL

Export this driver to a simulation software:

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