Dayton Audio DA175-8
Woofer
7″ / 176 mm
Nominal diameter
39 Hz
Resonance
0.58
Q factor
83 dB
Sensitivity
± 4.25 mm
Linear excursion
100 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
83.3
dB
Frequency response
35 - 10000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
3.31
Electrical quality factor
QES
0.70
Total quality factor
QTS
0.58
Large signal parameters
Maximum linear excursion
xmax
4.25
mm
Air volume displaced at xmax
VD
56
cm³
Power handling
P
50
W
Program power
Pmax
100
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.9
Ω
Inductance (1kHz)
LE
1.14
mH
VC Diameter
35
mm
Winding material
Copper
Former material
Aluminum
Magnet
Force factor
Bl
7.17
N/A
Motor constant
Bl/√RE
2.95
N/√W
Material
Ferrite
Diaphragm
Effective diameter
130
mm
Effective area
SD
133
cm²
Moving mass
MMS
25.2
g
Moving mass (without air load)
MMD
24
g
Material
Aluminum
Suspensions
Stiffness
KMS
1.52
N/mm
Compliance
CMS
660
µm/N
Equivalent volume to the compliance
VAS
16.3
L
Mechanical resistance
RMS
1.86
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
7
″
176
mm
Overall diameter
176
mm
Baffle cutout diameter
144
mm
Overall depth
81
mm
Volume occupied by the driver (estimated)
0.53
L
Frame material
Steel
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fS
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SD
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39 - 3600 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
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SD
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