RCF L18P300
Subwoofer
18″ / 457 mm
Nominal diameter
33 Hz
Resonance
0.33
Q factor
95 dB
Sensitivity
± 8 mm
Linear excursion
2000 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
94.9
dB
Frequency response
35 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
8.30
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.33
Large signal parameters
Maximum linear excursion
xmax
8.0
mm
Maximum excursion before damage
xlim
20.0
mm
Air volume displaced at xmax
VD
880
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.0
Ω
Inductance (1kHz)
LE
1.8
mH
VC Diameter
102
mm
Winding height
HVC
23
mm
Winding material
Copper
Former material
Glass Fiber
Magnet
Force factor
Bl
23.5
N/A
Motor constant
Bl/√RE
10.5
N/√W
Air gap height
HAG
15
mm
Diaphragm
Effective diameter
380
mm
Effective area
SD
1100
cm²
Moving mass
MMS
180
g
Moving mass (without air load)
MMD
153.6
g
Suspensions
Stiffness
KMS
7.81
N/mm
Compliance
CMS
128
µm/N
Equivalent volume to the compliance
VAS
226
L
Mechanical resistance
RMS
4.5
N·s/m
Spider material
with silicon damping
Dimensions
Nominal diameter
18
″
457
mm
Overall diameter
460
mm
Baffle cutout diameter
418
mm
Overall depth
202
mm
Volume occupied by the driver
6.5
L
Net weight
13.0
kg
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