8″ / 223 mm
Nominal diameter
28 Hz
Resonance
0.38
Q factor
86 dB
Sensitivity
± 7 mm
Linear excursion
160 W
Program Power
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Available on (affiliate link)
Parts Express
$$
Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.6
dB
Frequency response
28 - 2400
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
28.3
Hz
Mechanical quality factor
QMS
1.46
Electrical quality factor
QES
0.51
Total quality factor
QTS
0.38
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
160
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz)
LE
0.86
mH
VC Diameter
38
mm
Winding material
Copper
Former material
Aluminum
Magnet
Force factor
Bl
9.05
N/A
Motor constant
Bl/√RE
3.55
N/√W
Material
Ferrite
Diaphragm
Effective diameter
165
mm
Effective area
SD
214
cm²
Moving mass
MMS
35.8
g
Moving mass (without air load)
MMD
33.4
g
Material
Black Anodized Aluminum
Suspensions
Stiffness
KMS
1.14
N/mm
Compliance
CMS
880
µm/N
Equivalent volume to the compliance
VAS
56.8
L
Mechanical resistance
RMS
4.36
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
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to Dayton Audio RS225-8
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8″Mid-range
fS
28 Hz
SD
207 cm²
28 - 4500 Hz
QTS
0.38
xmax
4.8 mm
SPL1W
86 dB
Bl/√RE
3.98
Pmax
120 W
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8″Subwoofer
fS
29 Hz
SD
210 cm²
QTS
0.43
xmax
10.5 mm
SPL1W
84 dB
Bl/√RE
4.54
Pmax
300 W