SEAS H1794-08 FEA18RCZ
Full-range
8″ / 180 mm
Nominal diameter
42 Hz
Resonance
0.39
Q factor
89 dB
Sensitivity
± 3 mm
Linear excursion
110 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.9
dB
Frequency response
45 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
42.0
Hz
Mechanical quality factor
QMS
6.29
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.39
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Maximum excursion before damage
xlim
7.0
mm
Air volume displaced at xmax
VD
41
cm³
Power handling
P
40
W
Program power
Pmax
110
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
0.49
mH
VC Diameter
26
mm
Winding height
HVC
12
mm
Magnet
Flux density
B
1.1
T
Force factor
Bl
6.6
N/A
Motor constant
Bl/√RE
2.76
N/√W
Air gap height
HAG
6
mm
Weight
0.6
kg
Diaphragm
Effective diameter
132
mm
Effective area
SD
136
cm²
Moving mass
MMS
12.1
g
Moving mass (without air load)
MMD
10.9
g
Suspensions
Stiffness
KMS
0.84
N/mm
Compliance
CMS
1190
µm/N
Equivalent volume to the compliance
VAS
31
L
Mechanical resistance
RMS
0.51
N·s/m
Dimensions
Nominal diameter
8
″
180
mm
Volume occupied by the driver (estimated)
0.74
L
Net weight
1.8
kg
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fS
41 Hz
SD
201 cm²
40 - 2000 Hz
QTS
0.39
xmax
4.5 mm
SPL1W
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Bl/√RE
4.13
Pmax
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fS
46 Hz
SD
140 cm²
46 - 5000 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
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fS
40 Hz
SD
221 cm²
39 - 4500 Hz
QTS
0.43
xmax
6.0 mm
SPL1W
88 dB
Bl/√RE
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Pmax
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