Dayton Audio DA135-8
Woofer
5.25″ / 135 mm
Nominal diameter
57 Hz
Resonance
0.54
Q factor
85 dB
Sensitivity
± 3 mm
Linear excursion
60 W
Program Power
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Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
84.7
dB
Frequency response
50 - 15000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
56.5
Hz
Mechanical quality factor
QMS
2.61
Electrical quality factor
QES
0.68
Total quality factor
QTS
0.54
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Air volume displaced at xmax
VD
23
cm³
Power handling
P
30
W
Program power
Pmax
60
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.4
Ω
Inductance (1kHz)
LE
0.97
mH
VC Diameter
25
mm
Winding material
Copper
Former material
Aluminum
Magnet
Force factor
Bl
5.32
N/A
Motor constant
Bl/√RE
2.1
N/√W
Material
Ferrite
Diaphragm
Effective diameter
98
mm
Effective area
SD
75
cm²
Moving mass
MMS
8.5
g
Moving mass (without air load)
MMD
8
g
Material
Aluminum
Suspensions
Stiffness
KMS
1.08
N/mm
Compliance
CMS
930
µm/N
Equivalent volume to the compliance
VAS
7.4
L
Mechanical resistance
RMS
1.16
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
5.25
″
135
mm
Overall diameter
135
mm
Baffle cutout diameter
112
mm
Overall depth
63
mm
Volume occupied by the driver (estimated)
0.26
L
Frame material
Steel
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SD
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QTS
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xmax
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SD
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fS
57 Hz
SD
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QTS
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xmax
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SPL1W
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