Ciare PWA12.75

Woofer

12″ / 320 mm
Nominal diameter
53 Hz
Resonance
0.3
Q factor
95 dB
Sensitivity
± 5.8 mm
Linear excursion
900 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
94.9
dB
Frequency response
50 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
53.0
Hz
Mechanical quality factor
QMS
4.10
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.30

Large signal parameters

Maximum linear excursion
xmax
5.8
mm
Maximum excursion before damage
xlim
30.0
mm
Air volume displaced at xmax
VD
308
cm³
Power handling
P
450
W
Program power
Pmax
900
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.4
Ω
Inductance (1kHz)
LE
1.06
mH
VC Diameter
75
mm
Winding height
HVC
16.5
mm
Winding material
Copper
Former material
Glass Fiber

Magnet

Force factor
Bl
19.6
N/A
Motor constant
Bl/√RE
8.43
N/√W
Air gap height
HAG
10
mm
Material
Ferrite

Diaphragm

Effective diameter
260
mm
Effective area
SD
531
cm²
Moving mass
MMS
70
g
Moving mass (without air load)
MMD
61.3
g
Material
Water repellent

Suspensions

Stiffness
KMS
7.58
N/mm
Compliance
CMS
132
µm/N
Equivalent volume to the compliance
VAS
52
L
Mechanical resistance
RMS
5.69
N·s/m
Surround material
Triple Roll - Polycotton

Dimensions

Nominal diameter
12
320
mm
Overall diameter
313
mm
Baffle cutout diameter
282
mm
Overall depth
136
mm
Flange thickness
9
mm
Mounting depth
127
mm
Volume occupied by the driver (estimated)
2.0
L
Net weight
4.2
kg
Frame material
Steel
Ciare PWA12.75 Impedance
Ciare PWA12.75 SPL

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