Ciare PW257

Woofer

10″ / 250 mm
Nominal diameter
57 Hz
Resonance
0.3
Q factor
94 dB
Sensitivity
± 3.5 mm
Linear excursion
800 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
93.8
dB

Thiele & Small parameters

Resonance frequency (free air)
fS
57.0
Hz
Mechanical quality factor
QMS
3.20
Electrical quality factor
QES
0.33
Total quality factor
QTS
0.30

Large signal parameters

Maximum linear excursion
xmax
3.5
mm
Air volume displaced at xmax
VD
126
cm³
Power handling
P
400
W
Program power
Pmax
800
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
0.94
mH
VC Diameter
75
mm
Former material
Aluminium

Magnet

Force factor
Bl
15.86
N/A
Motor constant
Bl/√RE
6.95
N/√W
Air gap height
HAG
10
mm
Material
Ferrite

Diaphragm

Effective diameter
212
mm
Effective area
SD
359
cm²
Moving mass
MMS
44.9
g
Moving mass (without air load)
MMD
39.9
g

Suspensions

Stiffness
KMS
5.88
N/mm
Compliance
CMS
170
µm/N
Equivalent volume to the compliance
VAS
31
L
Mechanical resistance
RMS
5.03
N·s/m
Surround material
Nomex

Dimensions

Nominal diameter
10
250
mm
Overall diameter
268
mm
Baffle cutout diameter
235
mm
Overall depth
107
mm
Flange thickness
13
mm
Mounting depth
94
mm
Volume occupied by the driver (estimated)
1.3
L
Frame material
Aluminium
Ciare PW257 SPL & Impedance
Ciare PW257 Dimensions

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