RCF LF15X401
Subwoofer
15″ / 381 mm
Nominal diameter
34 Hz
Resonance
0.29
Q factor
94 dB
Sensitivity
± 12 mm
Linear excursion
3000 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.4
dB
Frequency response
30 - 1500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
34.0
Hz
Mechanical quality factor
QMS
7.60
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.29
Large signal parameters
Maximum linear excursion
xmax
12.0
mm
Maximum excursion before damage
xlim
25.0
mm
Air volume displaced at xmax
VD
1080
cm³
Power handling
P
1500
W
Program power
Pmax
3000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
1.3
mH
VC Diameter
102
mm
Winding height
HVC
30
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Force factor
Bl
26.5
N/A
Motor constant
Bl/√RE
11.3
N/√W
Air gap height
HAG
15
mm
Diaphragm
Effective diameter
340
mm
Effective area
SD
900
cm²
Moving mass
MMS
170
g
Moving mass (without air load)
MMD
151.4
g
Suspensions
Stiffness
KMS
8.2
N/mm
Compliance
CMS
122
µm/N
Equivalent volume to the compliance
VAS
146
L
Mechanical resistance
RMS
4.78
N·s/m
Spider material
with silicon damping
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
393
mm
Baffle cutout diameter
354
mm
Overall depth
161
mm
Volume occupied by the driver
4.3
L
Net weight
12.0
kg
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SD
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SD
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