Ciare 18.00SW-4

Subwoofer

18″ / 450 mm
Nominal diameter
36 Hz
Resonance
0.61
Q factor
90 dB
Sensitivity
± 14 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
Discard
Apply
Sensitivity (1w, 1m, infinite baffle)
SPL1W
90.1
dB
Frequency response
20 - 200
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
36.0
Hz
Mechanical quality factor
QMS
6.60
Electrical quality factor
QES
0.70
Total quality factor
QTS
0.61

Large signal parameters

Maximum linear excursion
xmax
14.0
mm
Air volume displaced at xmax
VD
1546
cm³
Power handling
P
1000
W
Program power
Pmax
2000
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.3
Ω
Inductance (1kHz)
LE
2.7
mH
VC Diameter
100
mm
Winding material
Copper
Former material
Kapton

Magnet

Force factor
Bl
20.0
N/A
Motor constant
Bl/√RE
11.0
N/√W
Air gap height
HAG
10
mm
Material
Ferrite

Diaphragm

Effective diameter
375
mm
Effective area
SD
1105
cm²
Moving mass
MMS
375
g
Moving mass (without air load)
MMD
348.5
g
Material
Treated Cellulose

Suspensions

Stiffness
KMS
18.52
N/mm
Compliance
CMS
54
µm/N
Equivalent volume to the compliance
VAS
94
L
Mechanical resistance
RMS
12.85
N·s/m
Surround material
Rubber
Spider material
Nomex

Dimensions

Nominal diameter
18
450
mm
Overall diameter
460
mm
Baffle cutout diameter
416
mm
Overall depth
183
mm
Flange thickness
27
mm
Mounting depth
156
mm
Volume occupied by the driver (estimated)
5.7
L
Frame material
Aluminium
Ciare 18.00SW-4 Impedance
Ciare 18.00SW-4 SPL
Ciare 18.00SW-4 Dimensions

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