Focal Sub 12 Slim
Subwoofer
12″ / 324 mm
Nominal diameter
24 Hz
Resonance
0.69
Q factor
83 dB
Sensitivity
560 W
Program Power
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Sensitivity (1W, 1m, infinite baffle)
SPL1W
83.3
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
24.0
Hz
Mechanical quality factor
QMS
6.88
Electrical quality factor
QES
0.76
Total quality factor
QTS
0.69
Large signal parameters
Power handling
P
280
W
Program power
Pmax
560
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz, estimated)
LE
1.13
mH
VC Diameter
20
mm
Magnet
Force factor
Bl
11.5
N/A
Motor constant
Bl/√RE
6.43
N/√W
Diaphragm
Effective diameter
245
mm
Effective area
SD
471
cm²
Moving mass
MMS
200
g
Moving mass (without air load)
MMD
192.2
g
Material
Polypropylene
Suspensions
Stiffness
KMS
5.0
N/mm
Compliance
CMS
200
µm/N
Equivalent volume to the compliance
VAS
62
L
Mechanical resistance
RMS
4.38
N·s/m
Surround material
Butyl
Dimensions
Nominal diameter
12
″
324
mm
Overall diameter
324
mm
Baffle cutout diameter
281
mm
Mounting depth
86
mm
Volume occupied by the driver (estimated)
2.2
L
Net weight
5.0
kg
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Similar subwoofers to Focal Sub 12 Slim
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Cerwin Vega V122DV22 x 2 Ω
12″Subwoofer
fS
27 Hz
SD
490 cm²
QTS
0.64
xmax
17.0 mm
SPL1W
85 dB
Bl/√RE
6.55
Pmax
1300 W
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