SEAS H1878-08 L19RNX1
Woofer
8″ / 190 mm
Nominal diameter
32 Hz
Resonance
0.38
Q factor
85 dB
Sensitivity
± 7 mm
Linear excursion
330 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.4
dB
Frequency response
20 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
32.0
Hz
Mechanical quality factor
QMS
5.50
Electrical quality factor
QES
0.41
Total quality factor
QTS
0.38
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Maximum excursion before damage
xlim
11.0
mm
Air volume displaced at xmax
VD
102
cm³
Power handling
P
200
W
Program power
Pmax
330
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.2
Ω
Inductance (1kHz)
LE
0.66
mH
VC Diameter
39
mm
Winding height
HVC
20
mm
Magnet
Flux density
B
1.3
T
Force factor
Bl
8.8
N/A
Motor constant
Bl/√RE
3.53
N/√W
Air gap height
HAG
6
mm
Weight
0.9
kg
Diaphragm
Effective diameter
136
mm
Effective area
SD
146
cm²
Moving mass
MMS
25.4
g
Moving mass (without air load)
MMD
24
g
Suspensions
Stiffness
KMS
1.04
N/mm
Compliance
CMS
960
µm/N
Equivalent volume to the compliance
VAS
29
L
Mechanical resistance
RMS
0.93
N·s/m
Dimensions
Nominal diameter
8
″
190
mm
Volume occupied by the driver (estimated)
0.82
L
Net weight
2.0
kg
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SpeakerbenchSimilar woofers to SEAS H1878-08 L19RNX1
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8″Woofer
fS
34 Hz
SD
136 cm²
20 - 2000 Hz
QTS
0.41
xmax
7.0 mm
SPL1W
85 dB
Bl/√RE
3.33
Pmax
360 W
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8″Woofer
fS
34 Hz
SD
126 cm²
40 - 2500 Hz
QTS
0.42
xmax
5.0 mm
SPL1W
86 dB
Bl/√RE
2.67
Pmax
250 W