Fountek FW222
Mid Bass
8″ / 222 mm
Nominal diameter
35 Hz
Resonance
0.49
Q factor
87 dB
Sensitivity
± 7 mm
Linear excursion
150 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.8
dB
Frequency response
50 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
34.6
Hz
Mechanical quality factor
QMS
2.61
Electrical quality factor
QES
0.61
Total quality factor
QTS
0.49
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
153
cm³
Power handling
P
75
W
Program power
Pmax
150
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.8
Ω
Inductance (1kHz, estimated)
LE
0.75
mH
VC Diameter
50
mm
Winding height
HVC
20
mm
Winding material
Copper
Former material
Aluminum
Magnet
Flux density
B
1.0
T
Force factor
Bl
8.7
N/A
Motor constant
Bl/√RE
3.34
N/√W
Air gap height
HAG
6
mm
Material
Ferrite
Diaphragm
Effective diameter
167
mm
Effective area
SD
219
cm²
Moving mass
MMS
30.2
g
Moving mass (without air load)
MMD
27.7
g
Suspensions
Stiffness
KMS
1.43
N/mm
Compliance
CMS
700
µm/N
Equivalent volume to the compliance
VAS
47.7
L
Mechanical resistance
RMS
2.52
N·s/m
Dimensions
Nominal diameter
8
″
222
mm
Overall diameter
224
mm
Overall depth
95
mm
Volume occupied by the driver (estimated)
0.89
L
Net weight
2.3
kg
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SpeakerbenchSimilar woofers to Fountek FW222
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9″Woofer
fS
33 Hz
SD
213 cm²
33 - 2000 Hz
QTS
0.46
xmax
6.5 mm
SPL1W
87 dB
Bl/√RE
3.82
Pmax
300 W
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8″Woofer
fS
30 Hz
SD
220 cm²
30 - 6000 Hz
QTS
0.43
xmax
3.9 mm
SPL1W
88 dB
Bl/√RE
3.43
Pmax
120 W
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Skar Audio IX-10 D22 x 2 Ω
10″Subwoofer
fS
36 Hz
SD
338 cm²
40 - 600 Hz
QTS
0.55
xmax
7.0 mm
SPL1W
86 dB
Bl/√RE
5.63
Pmax
400 W