Focal FLAX EVO Sub P 30 FSE
Shallow subwoofer
12″ / 300 mm
Nominal diameter
30 Hz
Resonance
1.1
Q factor
84 dB
Sensitivity
± 11 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
84.0
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
30.0
Hz
Mechanical quality factor
QMS
7.20
Electrical quality factor
QES
1.30
Total quality factor
QTS
1.10
Large signal parameters
Maximum linear excursion
xmax
11.0
mm
Air volume displaced at xmax
VD
561
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz, estimated)
LE
1.2
mH
VC Diameter
38
mm
Winding material
Copper
Former material
Fiberglass
Magnet
Force factor
Bl
10.2
N/A
Motor constant
Bl/√RE
5.7
N/√W
Material
Ferrite
Diaphragm
Effective diameter
255
mm
Effective area
SD
510
cm²
Moving mass
MMS
220
g
Moving mass (without air load)
MMD
211.6
g
Material
Flax
Suspensions
Stiffness
KMS
8.33
N/mm
Compliance
CMS
120
µm/N
Equivalent volume to the compliance
VAS
42
L
Mechanical resistance
RMS
5.76
N·s/m
Surround material
Butyl Rubber
Dimensions
Nominal diameter
12
″
300
mm
Overall diameter
315
mm
Baffle cutout diameter
276
mm
Overall depth
128
mm
Flange thickness
19
mm
Mounting depth
109
mm
Volume occupied by the driver (estimated)
2.0
L
Net weight
4.2
kg
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10″Subwoofer
fS
36 Hz
SD
365 cm²
32 - 400 Hz
QTS
0.92
xmax
9.0 mm
SPL1W
85 dB
Bl/√RE
4.68
Pmax
600 W