Ciare PW455

4Ω
8Ω

Woofer

18″ / 450 mm
Nominal diameter
35 Hz
Resonance
0.24
Q factor
97 dB
Sensitivity
± 8.5 mm
Linear excursion
1800 W
Program Power
Ciare PW455 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
Sensitivity (1W, 1m, infinite baffle)
SPL1W
97.3
dB
Frequency response
35 - 1200
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
35.0
Hz
Mechanical quality factor
QMS
19.88
Electrical quality factor
QES
0.24
Total quality factor
QTS
0.24

Large signal parameters

Maximum linear excursion
xmax
8.5
mm
Air volume displaced at xmax
VD
984
cm³
Power handling
P
900
W
Program power
Pmax
1800
W

Voice Coil

Nominal impedance
Z
4
Ω
DC resistance
RE
3.2
Ω
Inductance (1kHz)
LE
1.03
mH
VC Diameter
100
mm
Winding height
HVC
22
mm
Winding material
Sandwich aluminium
Former material
Kapton

Magnet

Force factor
Bl
21.8
N/A
Motor constant
Bl/√RE
12.3
N/√W
Air gap height
HAG
10
mm
Material
Ferrite

Diaphragm

Effective diameter
384
mm
Effective area
SD
1158
cm²
Moving mass
MMS
163.6
g
Moving mass (without air load)
MMD
135.7
g
Material
Doped cellulose fiber

Suspensions

Stiffness
KMS
7.69
N/mm
Compliance
CMS
130
µm/N
Equivalent volume to the compliance
VAS
236
L
Mechanical resistance
RMS
1.81
N·s/m
Surround material
Nomex Fabric
Spider material
Nomex Fabric

Dimensions

Nominal diameter
18
″
450
mm
Overall diameter
460
mm
Baffle cutout diameter
416
mm
Overall depth
190
mm
Flange thickness
17
mm
Mounting depth
173
mm
Volume occupied by the driver (estimated)
6.7
L
Net weight
12.9
kg
Frame material
Aluminium
SPL & Impedance
Ciare PW455 SPL & Impedance
Ciare PW455 Dimensions
DatasheetDatasheet

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