18″ / 450 mm
Nominal diameter
44 Hz
Resonance
0.37
Q factor
96 dB
Sensitivity
± 10 mm
Linear excursion
2000 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
Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.4
dB
Frequency response
25 - 500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
44.0
Hz
Mechanical quality factor
QMS
4.60
Electrical quality factor
QES
0.40
Total quality factor
QTS
0.37
Large signal parameters
Maximum linear excursion
xmax
10.0
mm
Maximum excursion before damage
xlim
25.0
mm
Air volume displaced at xmax
VD
1029
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.6
Ω
Inductance (1kHz)
LE
3.1
mH
VC Diameter
100
mm
Magnet
Force factor
Bl
22.0
N/A
Motor constant
Bl/√RE
9.3
N/√W
Weight
11.5
kg
Diaphragm
Effective diameter
362
mm
Effective area
SD
1029
cm²
Moving mass
MMS
120
g
Moving mass (without air load)
MMD
95.5
g
Suspensions
Stiffness
KMS
9.09
N/mm
Compliance
CMS
110
µm/N
Equivalent volume to the compliance
VAS
161
L
Mechanical resistance
RMS
7.21
N·s/m
Dimensions
Nominal diameter
18
″
450
mm
Overall diameter
459
mm
Baffle cutout diameter
398
mm
Overall depth
229
mm
Flange thickness
14
mm
Mounting depth
215
mm
Volume occupied by the driver
16.0
L
Net weight
17.0
kg
Frame material
Diecast Aluminum
Similar subwoofers to VOLT RV4514
15″Subwoofer
fS
41 Hz
SD
856 cm²
44 - 800 Hz
QTS
0.39
xmax
7.9 mm
SPL1W
95 dB
Bl/√RE
7.94
Pmax
2500 W
18″Subwoofer
fS
43 Hz
SD
1288 cm²
45 - 2500 Hz
QTS
0.44
xmax
9.8 mm
SPL1W
96 dB
Bl/√RE
11
Pmax
2200 W
15″Woofer
fS
40 Hz
SD
856 cm²
35 - 3500 Hz
QTS
0.37
xmax
6.9 mm
SPL1W
96 dB
Bl/√RE
7.73
Pmax
1200 W