SUPRAVOX 285-2000
Mid Bass
12″ / 285 mm
Nominal diameter
45 Hz
Resonance
0.2
Q factor
103 dB
Sensitivity
± 4 mm
Linear excursion
140 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
103.0
dB
Frequency response
45 - 7000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
45.0
Hz
Mechanical quality factor
QMS
6.00
Electrical quality factor
QES
0.22
Total quality factor
QTS
0.20
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
188
cm³
Power handling
P
70
W
Program power
Pmax
140
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz, estimated)
LE
0.53
mH
Magnet
Flux density
B
2.1
T
Force factor
Bl
12.0
N/A
Motor constant
Bl/√RE
4.71
N/√W
Weight
3.5
kg
Material
Alnico
Diaphragm
Effective diameter
245
mm
Effective area
SD
471
cm²
Moving mass
MMS
18.5
g
Moving mass (without air load)
MMD
11.3
g
Suspensions
Stiffness
KMS
1.67
N/mm
Compliance
CMS
600
µm/N
Equivalent volume to the compliance
VAS
200
L
Mechanical resistance
RMS
0.87
N·s/m
Surround material
Paper
Dimensions
Nominal diameter
12
″
285
mm
Overall diameter
290
mm
Baffle cutout diameter
280
mm
Overall depth
180
mm
Flange thickness
8
mm
Mounting depth
172
mm
Volume occupied by the driver (estimated)
3.0
L
Frame material
Aluminium
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Export this driver to a simulation software:
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fS
44 Hz
SD
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40 - 20000 Hz
QTS
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xmax
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SPL1W
97 dB
Bl/√RE
7.97
Pmax
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8″Full-range
fS
47 Hz
SD
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50 - 20000 Hz
QTS
0.23
xmax
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fS
35 Hz
SD
530 cm²
40 - 20000 Hz
QTS
0.21
xmax
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SPL1W
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Bl/√RE
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Pmax
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