RCF L18S801
Woofer
18″ / 457 mm
Nominal diameter
39 Hz
Resonance
0.29
Q factor
97 dB
Sensitivity
± 7 mm
Linear excursion
1400 W
Program Power
Discontinued
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.8
dB
Frequency response
38 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
8.30
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.29
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Maximum excursion before damage
xlim
20.0
mm
Air volume displaced at xmax
VD
770
cm³
Power handling
P
700
W
Program power
Pmax
1400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
4.9
Ω
Inductance (1kHz)
LE
1.7
mH
VC Diameter
102
mm
Winding height
HVC
19
mm
Winding material
Copper
Magnet
Force factor
Bl
24.5
N/A
Motor constant
Bl/√RE
11.1
N/√W
Material
Ceramic
Diaphragm
Effective diameter
380
mm
Effective area
SD
1100
cm²
Moving mass
MMS
148
g
Moving mass (without air load)
MMD
121.6
g
Suspensions
Stiffness
KMS
8.33
N/mm
Compliance
CMS
120
µm/N
Equivalent volume to the compliance
VAS
206
L
Mechanical resistance
RMS
4.37
N·s/m
Surround material
Polycotton
Dimensions
Nominal diameter
18
″
457
mm
Overall diameter
460
mm
Baffle cutout diameter
418
mm
Overall depth
202
mm
Flange thickness
10
mm
Mounting depth
192
mm
Volume occupied by the driver
6.5
L
Net weight
12.0
kg
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SpeakerbenchSimilar subwoofers to RCF L18S801
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15″Low frequency
fS
38 Hz
SD
850 cm²
38 - 4400 Hz
QTS
0.29
xmax
6.5 mm
SPL1W
96 dB
Bl/√RE
8.66
Pmax
600 W
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15″Subwoofer
fS
39 Hz
SD
850 cm²
40 - 4300 Hz
QTS
0.29
xmax
8.0 mm
SPL1W
97 dB
Bl/√RE
8.52
Pmax
1200 W
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18″Subwoofer
fS
37 Hz
SD
1134 cm²
37 - 3000 Hz
QTS
0.25
xmax
7.0 mm
SPL1W
98 dB
Bl/√RE
11
Pmax
2400 W