SEAS H1208-08 L22RN4X/P
Subwoofer
8″ / 220 mm
Nominal diameter
21 Hz
Resonance
0.27
Q factor
87 dB
Sensitivity
± 7 mm
Linear excursion
300 W
Program Power
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
86.6
dB
Frequency response
20 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
21.0
Hz
Mechanical quality factor
QMS
3.13
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.27
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Maximum excursion before damage
xlim
10.5
mm
Air volume displaced at xmax
VD
154
cm³
Power handling
P
125
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.1
Ω
Inductance (1kHz)
LE
3.76
mH
VC Diameter
39
mm
Winding height
HVC
20
mm
Magnet
Flux density
B
0.9
T
Force factor
Bl
10.7
N/A
Motor constant
Bl/√RE
4.33
N/√W
Air gap height
HAG
6
mm
Weight
0.64
kg
Diaphragm
Effective diameter
167
mm
Effective area
SD
220
cm²
Moving mass
MMS
40
g
Moving mass (without air load)
MMD
37.5
g
Suspensions
Stiffness
KMS
0.71
N/mm
Compliance
CMS
1400
µm/N
Equivalent volume to the compliance
VAS
93
L
Mechanical resistance
RMS
1.76
N·s/m
Dimensions
Nominal diameter
8
″
220
mm
Volume occupied by the driver (estimated)
0.91
L
Net weight
2.2
kg
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SD
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