RCF LF12P901
Subwoofer
12″ / 305 mm
Nominal diameter
43 Hz
Resonance
0.22
Q factor
97 dB
Sensitivity
± 7 mm
Linear excursion
900 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.5
dB
Frequency response
40 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
43.0
Hz
Mechanical quality factor
QMS
4.60
Electrical quality factor
QES
0.23
Total quality factor
QTS
0.22
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Maximum excursion before damage
xlim
18.0
mm
Air volume displaced at xmax
VD
392
cm³
Power handling
P
450
W
Program power
Pmax
900
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
1.2
mH
VC Diameter
76
mm
Winding height
HVC
19
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Force factor
Bl
19.0
N/A
Motor constant
Bl/√RE
7.89
N/√W
Air gap height
HAG
10
mm
Diaphragm
Effective diameter
260
mm
Effective area
SD
560
cm²
Moving mass
MMS
56
g
Moving mass (without air load)
MMD
46.6
g
Suspensions
Stiffness
KMS
3.86
N/mm
Compliance
CMS
259
µm/N
Equivalent volume to the compliance
VAS
97
L
Mechanical resistance
RMS
3.29
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
320
mm
Baffle cutout diameter
284
mm
Overall depth
140
mm
Volume occupied by the driver
2.6
L
Net weight
7.0
kg
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fS
43 Hz
SD
560 cm²
40 - 2000 Hz
QTS
0.22
xmax
7.0 mm
SPL1W
97 dB
Bl/√RE
7.89
Pmax
900 W
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fS
45 Hz
SD
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45 - 4000 Hz
QTS
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xmax
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SPL1W
96 dB
Bl/√RE
7.75
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fS
43 Hz
SD
707 cm²
45 - 2000 Hz
QTS
0.23
xmax
8.8 mm
SPL1W
97 dB
Bl/√RE
10
Pmax
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