B&C Speaker 12CL64

Woofer

12″ / 320 mm
Nominal diameter
52 Hz
Resonance
0.3
Q factor
96 dB
Sensitivity
± 4.5 mm
Linear excursion
500 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
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Specifications

Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.7
dB
Frequency response
50 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
52.0
Hz
Mechanical quality factor
QMS
4.30
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.30

Large signal parameters

Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
235
cm³
Power handling
P
250
W
Program power
Pmax
500
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz)
LE
1.1
mH
VC Diameter
64
mm
Winding height
HVC
13
mm
Winding material
Copper
Former material
Glass Fibre

Magnet

Flux density
B
1.15
T
Force factor
Bl
17.5
N/A
Motor constant
Bl/√RE
7.46
N/√W
Air gap height
HAG
8
mm
Material
Neodymium Inside Slug

Diaphragm

Effective diameter
258
mm
Effective area
SD
522
cm²
Moving mass
MMS
55
g
Moving mass (without air load)
MMD
46.5
g
Material
Waterproof

Suspensions

Stiffness
KMS
6.02
N/mm
Compliance
CMS
166
µm/N
Equivalent volume to the compliance
VAS
64
L
Mechanical resistance
RMS
4.18
N·s/m
Spider material
Single

Dimensions

Nominal diameter
12
320
mm
Overall diameter
313
mm
Baffle cutout diameter
282
mm
Overall depth
133
mm
Flange thickness
9
mm
Mounting depth
124
mm
Volume occupied by the driver
2.0
L
Net weight
1.9
kg
B&C Speaker 12CL64 Impedance
B&C Speaker 12CL64 SPL
B&C Speaker 12CL64 Dimensions

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