18″ / 460 mm
Nominal diameter
38 Hz
Resonance
0.46
Q factor
94 dB
Sensitivity
± 8.4 mm
Linear excursion
2400 W
Program Power
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
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Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.9
dB
Frequency response
40 - 1000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
38.0
Hz
Mechanical quality factor
QMS
10.30
Electrical quality factor
QES
0.48
Total quality factor
QTS
0.46
Large signal parameters
Maximum linear excursion
xmax
8.4
mm
Maximum excursion before damage
xlim
15.4
mm
Air volume displaced at xmax
VD
1029
cm³
Power handling
P
1200
W
Program power
Pmax
2400
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
4.9
Ω
Inductance (1kHz)
LE
1.93
mH
VC Diameter
100
mm
Winding height
HVC
22.7
mm
Former material
Glass Fiber
Magnet
Force factor
Bl
24.66
N/A
Motor constant
Bl/√RE
11.1
N/√W
Air gap height
HAG
12
mm
Diameter
220
mm
Height
25
mm
Diaphragm
Effective diameter
395
mm
Effective area
SD
1225
cm²
Moving mass
MMS
246.2
g
Moving mass (without air load)
MMD
216.6
g
Material
Water Resistant Treated Paper + Water Proof Front Side Treatment
Suspensions
Stiffness
KMS
14.49
N/mm
Compliance
CMS
69
µm/N
Equivalent volume to the compliance
VAS
147
L
Mechanical resistance
RMS
5.71
N·s/m
Surround material
Polycotton
Dimensions
Nominal diameter
18
″
460
mm
Volume occupied by the driver
8.5
L
Net weight
13.5
kg
Similar subwoofers to LaVoce SAF184.02
18″Subwoofer
fS
38 Hz
SD
1164 cm²
35 - 700 Hz
QTS
0.43
xmax
8.0 mm
SPL1W
94 dB
Bl/√RE
11
Pmax
2400 W
18″Low frequency
fS
39 Hz
SD
1164 cm²
25 - 2000 Hz
QTS
0.47
xmax
8.0 mm
SPL1W
94 dB
Bl/√RE
9.53
Pmax
2000 W
18″Subwoofer
fS
37 Hz
SD
1225 cm²
35 - 1000 Hz
QTS
0.48
xmax
12.1 mm
SPL1W
93 dB
Bl/√RE
11
Pmax
3000 W