RCF LF15Y408
Subwoofer
15″ / 381 mm
Nominal diameter
36 Hz
Resonance
0.26
Q factor
95 dB
Sensitivity
± 9 mm
Linear excursion
1600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.2
dB
Frequency response
30 - 1500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
36.0
Hz
Mechanical quality factor
QMS
6.20
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.26
Large signal parameters
Maximum linear excursion
xmax
9.0
mm
Maximum excursion before damage
xlim
750.0
mm
Air volume displaced at xmax
VD
810
cm³
Power handling
P
800
W
Program power
Pmax
1600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
4.8
Ω
Inductance (1kHz)
LE
2.5
mH
VC Diameter
102
mm
Winding height
HVC
23
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Force factor
Bl
24.6
N/A
Motor constant
Bl/√RE
11.2
N/√W
Air gap height
HAG
12
mm
Diaphragm
Effective diameter
35
mm
Effective area
SD
900
cm²
Moving mass
MMS
150
g
Moving mass (without air load)
MMD
131.4
g
Suspensions
Stiffness
KMS
7.69
N/mm
Compliance
CMS
130
µm/N
Equivalent volume to the compliance
VAS
150
L
Mechanical resistance
RMS
5.47
N·s/m
Spider material
with silicon damping
Dimensions
Nominal diameter
15
″
381
mm
Overall diameter
393
mm
Baffle cutout diameter
360
mm
Volume occupied by the driver
4.3
L
Net weight
13.0
kg
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fS
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SD
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xmax
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SD
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fS
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SD
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30 - 1000 Hz
QTS
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xmax
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SPL1W
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