Dayton Audio Epique E180HE-44
Subwoofer
8″ / 182 mm
Nominal diameter
35 Hz
Resonance
0.46
Q factor
83 dB
Sensitivity
± 14.7 mm
Linear excursion
400 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
83.1
dB
Frequency response
25 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
35.0
Hz
Mechanical quality factor
QMS
2.93
Electrical quality factor
QES
0.54
Total quality factor
QTS
0.46
Large signal parameters
Maximum linear excursion
xmax
14.7
mm
Air volume displaced at xmax
VD
200
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
2 x 4
Ω
DC resistance (in series)
RE
6.8
Ω
Inductance (1kHz, in series)
LE
1.5
mH
VC Diameter
38
mm
Winding material
Copper
Magnet
Force factor (in series)
Bl
9.6
N/A
Motor constant
Bl/√RE
3.68
N/√W
Material
Ferrite
Diaphragm
Effective diameter
132
mm
Effective area
SD
136
cm²
Moving mass
MMS
32.5
g
Moving mass (without air load)
MMD
31.3
g
Material
Carbon Fiber
Suspensions
Stiffness
KMS
1.64
N/mm
Compliance
CMS
610
µm/N
Equivalent volume to the compliance
VAS
16.1
L
Mechanical resistance
RMS
2.44
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
8
″
182
mm
Overall diameter
182
mm
Baffle cutout diameter
122
mm
Overall depth
116
mm
Volume occupied by the driver (estimated)
0.89
L
Frame material
Cast Aluminium
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fS
37 Hz
SD
94 cm²
30 - 25000 Hz
QTS
0.49
xmax
7.0 mm
SPL1W
83 dB
Bl/√RE
2.46
Pmax
250 W
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fS
37 Hz
SD
104 cm²
45 - 2000 Hz
QTS
0.45
xmax
6.0 mm
SPL1W
84 dB
Bl/√RE
2.49
Pmax
250 W