Focal FLAX EVO Sub P 20 FSE
Subwoofer
8″ / 200 mm
Nominal diameter
35 Hz
Resonance
1.3
Q factor
78 dB
Sensitivity
± 11 mm
Linear excursion
400 W
Program Power
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
78.1
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
35.0
Hz
Mechanical quality factor
QMS
5.00
Electrical quality factor
QES
1.80
Total quality factor
QTS
1.30
Large signal parameters
Maximum linear excursion
xmax
11.0
mm
Air volume displaced at xmax
VD
234
cm³
Power handling
P
200
W
Program power
Pmax
400
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz, estimated)
LE
0.94
mH
VC Diameter
38
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Force factor
Bl
7.6
N/A
Motor constant
Bl/√RE
4.25
N/√W
Diaphragm
Effective diameter
165
mm
Effective area
SD
213
cm²
Moving mass
MMS
150
g
Moving mass (without air load)
MMD
147.7
g
Material
Flax
Suspensions
Stiffness
KMS
6.67
N/mm
Compliance
CMS
150
µm/N
Equivalent volume to the compliance
VAS
9
L
Mechanical resistance
RMS
6.6
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
8
″
200
mm
Overall diameter
214
mm
Baffle cutout diameter
187
mm
Mounting depth
76
mm
Volume occupied by the driver (estimated)
1.5
L
Net weight
3.5
kg
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fS
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SD
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QTS
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xmax
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SPL1W
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Bl/√RE
6.56
Pmax
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fS
45 Hz
SD
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25 - 3000 Hz
QTS
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xmax
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Bl/√RE
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Pmax
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