RCF LF18G401

Woofer

18″ / 457 mm
Nominal diameter
33 Hz
Resonance
0.29
Q factor
96 dB
Sensitivity
± 9 mm
Linear excursion
1800 W
Program Power
RCF LF18G401 WooferRCF LF18G401 WooferRCF LF18G401 Woofer
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

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Specifications

Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.0
dB
Frequency response
30 - 1000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
33.0
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
9.0
mm
Maximum excursion before damage
xlim
25.0
mm
Air volume displaced at xmax
VD
1080
cm³
Power handling
P
900
W
Program power
Pmax
1800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
4.8
Ω
Inductance (1kHz)
LE
1.8
mH
VC Diameter
102
mm
Winding height
HVC
23
mm
Winding material
Copper

Magnet

Force factor
Bl
24.6
N/A
Motor constant
Bl/√RE
11.2
N/√W
Material
Ceramic

Diaphragm

Effective diameter
395
mm
Effective area
SD
1200
cm²
Moving mass
MMS
182
g
Moving mass (without air load)
MMD
152.7
g

Suspensions

Stiffness
KMS
7.63
N/mm
Compliance
CMS
131
µm/N
Equivalent volume to the compliance
VAS
268
L
Mechanical resistance
RMS
4.97
N·s/m
Surround material
Polycotton

Dimensions

Nominal diameter
18
″
457
mm
Overall diameter
465
mm
Baffle cutout diameter
424
mm
Overall depth
196
mm
Flange thickness
12
mm
Mounting depth
184
mm
Volume occupied by the driver
6.0
L
Net weight
13.0
kg
Impedance
SPL
RCF LF18G401 Impedance
RCF LF18G401 SPL
RCF LF18G401 Dimensions
DatasheetDatasheet

Export this driver to a simulation software:

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