RCF L15P540
Subwoofer
15″ / 381 mm
Nominal diameter
50 Hz
Resonance
0.39
Q factor
96 dB
Sensitivity
± 7 mm
Linear excursion
1000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.3
dB
Frequency response
40 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
50.0
Hz
Mechanical quality factor
QMS
9.70
Electrical quality factor
QES
0.41
Total quality factor
QTS
0.39
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Maximum excursion before damage
xlim
18.0
mm
Air volume displaced at xmax
VD
630
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
1.5
mH
VC Diameter
76
mm
Winding height
HVC
18
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Force factor
Bl
21.4
N/A
Motor constant
Bl/√RE
9.04
N/√W
Air gap height
HAG
10
mm
Diaphragm
Effective diameter
330
mm
Effective area
SD
900
cm²
Moving mass
MMS
106
g
Moving mass (without air load)
MMD
87.7
g
Suspensions
Stiffness
KMS
10.53
N/mm
Compliance
CMS
95
µm/N
Equivalent volume to the compliance
VAS
100
L
Mechanical resistance
RMS
3.43
N·s/m
Spider material
with silicon damping
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
387
mm
Baffle cutout diameter
360
mm
Overall depth
184
mm
Volume occupied by the driver
3.8
L
Net weight
8.8
kg
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fS
50 Hz
SD
900 cm²
40 - 2000 Hz
QTS
0.39
xmax
7.0 mm
SPL1W
96 dB
Bl/√RE
9.04
Pmax
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fS
54 Hz
SD
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QTS
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xmax
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SPL1W
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Bl/√RE
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fS
49 Hz
SD
855 cm²
49 - 3000 Hz
QTS
0.43
xmax
8.0 mm
SPL1W
96 dB
Bl/√RE
8.45
Pmax
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