8″ / 223 mm
Nominal diameter
32 Hz
Resonance
0.34
Q factor
88 dB
Sensitivity
± 7 mm
Linear excursion
120 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.1
dB
Frequency response
30 - 7000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
31.6
Hz
Mechanical quality factor
QMS
1.25
Electrical quality factor
QES
0.46
Total quality factor
QTS
0.34
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
150
cm³
Power handling
P
80
W
Program power
Pmax
120
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.1
Ω
Inductance (1kHz)
LE
1.02
mH
VC Diameter
39
mm
Magnet
Force factor
Bl
8.5
N/A
Motor constant
Bl/√RE
3.19
N/√W
Material
Ferrite
Diaphragm
Effective diameter
165
mm
Effective area
SD
214
cm²
Moving mass
MMS
23.6
g
Moving mass (without air load)
MMD
21.2
g
Material
Paper / Kevlar
Suspensions
Stiffness
KMS
0.94
N/mm
Compliance
CMS
1070
µm/N
Equivalent volume to the compliance
VAS
68.8
L
Mechanical resistance
RMS
3.75
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
8
″
223
mm
Overall diameter
223
mm
Baffle cutout diameter
184
mm
Overall depth
89
mm
Volume occupied by the driver (estimated)
0.82
L
Frame material
Cast Aluminium
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Export this driver to a simulation software:
WinISD
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QSpeakers
SpeakerSim
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SpeakerbenchSimilar woofers to Dayton Audio RS225P-8A
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9″Woofer
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
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8″Subwoofer
fS
29 Hz
SD
220 cm²
30 - 2000 Hz
QTS
0.36
xmax
5.0 mm
SPL1W
88 dB
Bl/√RE
3.58
Pmax
300 W
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