Dayton Audio Reference RS225-4

Woofer

8″ / 223 mm
Nominal diameter
33 Hz
Resonance
0.41
Q factor
87 dB
Sensitivity
± 6 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
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Specifications

Sensitivity (1W, 1m, infinite baffle)
SPL1W
86.6
dB
Frequency response
35 - 2300
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
2.02
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.41

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
128
cm³
Power handling
P
80
W
Program power
Pmax
160
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
0.49
mH
VC Diameter
38
mm
Winding material
Copper
Former material
Aluminum

Magnet

Force factor
Bl
6.38
N/A
Motor constant
Bl/√RE
3.57
N/√W
Material
Ferrite

Diaphragm

Effective diameter
165
mm
Effective area
SD
214
cm²
Moving mass
MMS
32.2
g
Moving mass (without air load)
MMD
29.8
g
Material
Black Anodized Aluminum

Suspensions

Stiffness
KMS
1.39
N/mm
Compliance
CMS
720
µm/N
Equivalent volume to the compliance
VAS
46.4
L
Mechanical resistance
RMS
3.31
N·s/m
Surround material
Rubber

Dimensions

Nominal diameter
8
223
mm
Overall diameter
223
mm
Baffle cutout diameter
184
mm
Overall depth
92
mm
Volume occupied by the driver (estimated)
0.86
L
Frame material
Cast Aluminium
Dayton Audio RS225-4 Impedance
Dayton Audio RS225-4 SPL
Dayton Audio RS225-4 Dimensions

Export this driver to a simulation software:

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Similar woofers to Dayton Audio RS225-4

Wavecor WF223BD01 Woofer
9Woofer
fS
33 Hz
SD
213 cm²
32 - 2000 Hz
QTS
0.39
xmax
6.5 mm
SPL1W
88 dB
Bl/√RE
4.18
Pmax
300 W