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
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Available on (affiliate links)
Amazon.com
$$$
Parts Express
$$$
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 Front Side
Suspensions
Stiffness
KMS
5.81
N/mm
Compliance
CMS
172
µm/N
Equivalent volume to the compliance
VAS
64
L
Mechanical resistance
RMS
4.18
N·s/m
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
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SpeakerbenchSimilar woofers to B&C Speaker 12CL64
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fS
49 Hz
SD
531 cm²
50 - 4600 Hz
QTS
0.28
xmax
8.0 mm
SPL1W
96 dB
Bl/√RE
7.89
Pmax
1200 W
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12″Low frequency
fS
49 Hz
SD
531 cm²
45 - 4000 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
7.88
Pmax
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12″Subwoofer
fS
50 Hz
SD
540 cm²
50 - 4000 Hz
QTS
0.27
xmax
7.0 mm
SPL1W
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Bl/√RE
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Pmax
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