P.Audio C12-500MB v2
Low frequency
12″ / 305 mm
Nominal diameter
62 Hz
Resonance
0.4
Q factor
96 dB
Sensitivity
± 4.45 mm
Linear excursion
1000 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.6
dB
Frequency response
60 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
62.0
Hz
Mechanical quality factor
QMS
6.66
Electrical quality factor
QES
0.42
Total quality factor
QTS
0.40
Large signal parameters
Maximum linear excursion
xmax
4.45
mm
Air volume displaced at xmax
VD
246
cm³
Power handling
P
500
W
Program power
Pmax
1000
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.31
mH
VC Diameter
99
mm
Winding height
HVC
16.9
mm
Winding material
CCA-R
Former material
Glass fiber
Magnet
Flux density
B
1.3
T
Force factor
Bl
20.03
N/A
Motor constant
Bl/√RE
8.32
N/√W
Air gap height
HAG
8
mm
Material
Ferrite
Diaphragm
Effective diameter
262
mm
Effective area
SD
552
cm²
Moving mass
MMS
75.8
g
Moving mass (without air load)
MMD
66.7
g
Material
Paper
Suspensions
Stiffness
KMS
11.36
N/mm
Compliance
CMS
88
µm/N
Equivalent volume to the compliance
VAS
38
L
Mechanical resistance
RMS
4.37
N·s/m
Surround material
Cloth
Spider material
Cotton (Single)
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
314
mm
Baffle cutout diameter
283
mm
Overall depth
131
mm
Flange thickness
16
mm
Mounting depth
115
mm
Volume occupied by the driver (estimated)
3.4
L
Net weight
9.7
kg
Frame material
Aluminium
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10″Bass Guitar Speaker
fS
62 Hz
SD
353 cm²
60 - 5000 Hz
QTS
0.42
xmax
4.5 mm
SPL1W
94 dB
Bl/√RE
5.24
Pmax
300 W
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12″Low frequency
fS
56 Hz
SD
531 cm²
50 - 2500 Hz
QTS
0.35
xmax
2.6 mm
SPL1W
95 dB
Bl/√RE
8.17
Pmax
1600 W
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12″Low frequency
fS
55 Hz
SD
531 cm²
60 - 2500 Hz
QTS
0.32
xmax
2.6 mm
SPL1W
95 dB
Bl/√RE
8.46
Pmax
1200 W