BMS 12CN860
Triaxial
12″ / 318 mm
Nominal diameter
52 Hz
Resonance
0.22
Q factor
95 dB
Sensitivity
± 4.5 mm
Linear excursion
1600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.1
dB
Frequency response
40 - 22000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
52.0
Hz
Mechanical quality factor
QMS
4.50
Electrical quality factor
QES
0.23
Total quality factor
QTS
0.22
Large signal parameters
Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
202
cm³
Power handling
P
800
W
Program power
Pmax
1600
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
0.89
mH
VC Diameter
102
mm
Winding height
HVC
19
mm
Winding material
Copper
Former material
Kapton
Magnet
Flux density
B
2.0
T
Force factor
Bl
24.2
N/A
Motor constant
Bl/√RE
10.1
N/√W
Air gap height
HAG
10
mm
Material
Neodymium
Diaphragm
Effective diameter
239
mm
Effective area
SD
449
cm²
Moving mass
MMS
72
g
Moving mass (without air load)
MMD
64.7
g
Material
Polyester
Suspensions
Stiffness
KMS
7.69
N/mm
Compliance
CMS
130
µm/N
Equivalent volume to the compliance
VAS
37
L
Mechanical resistance
RMS
5.23
N·s/m
Dimensions
Nominal diameter
12
″
318
mm
Overall diameter
318
mm
Baffle cutout diameter
284
mm
Overall depth
263
mm
Volume occupied by the driver (estimated)
5.0
L
Net weight
8.55
kg
Frame material
Cast Aluminum
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fS
56 Hz
SD
320 cm²
50 - 3000 Hz
QTS
0.26
xmax
6.0 mm
SPL1W
94 dB
Bl/√RE
6.79
Pmax
500 W
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10″Woofer
fS
57 Hz
SD
346 cm²
60 - 5000 Hz
QTS
0.22
xmax
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SPL1W
96 dB
Bl/√RE
7.85
Pmax
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fS
60 Hz
SD
351 cm²
60 - 4000 Hz
QTS
0.26
xmax
7.5 mm
SPL1W
94 dB
Bl/√RE
7.93
Pmax
1000 W