SUPRAVOX 215 RTF 64
Full-range
8″ / 215 mm
Nominal diameter
60 Hz
Resonance
0.58
Q factor
99 dB
Sensitivity
± 2 mm
Linear excursion
70 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
98.8
dB
Frequency response
50 - 10000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
60.0
Hz
Mechanical quality factor
QMS
7.00
Electrical quality factor
QES
0.60
Total quality factor
QTS
0.58
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
53
cm³
Power handling
P
35
W
Program power
Pmax
70
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz, estimated)
LE
0.33
mH
Magnet
Flux density
B
1.5
T
Force factor
Bl
5.8
N/A
Motor constant
Bl/√RE
2.27
N/√W
Diameter
120
mm
Diaphragm
Effective diameter
183
mm
Effective area
SD
263
cm²
Moving mass
MMS
8.5
g
Moving mass (without air load)
MMD
5.4
g
Suspensions
Stiffness
KMS
1.25
N/mm
Compliance
CMS
800
µm/N
Equivalent volume to the compliance
VAS
80
L
Mechanical resistance
RMS
0.46
N·s/m
Surround material
Paper
Dimensions
Nominal diameter
8
″
215
mm
Overall diameter
224
mm
Baffle cutout diameter
212
mm
Overall depth
100
mm
Flange thickness
10
mm
Mounting depth
90
mm
Volume occupied by the driver (estimated)
0.96
L
Frame material
Aluminium
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fS
52 Hz
SD
263 cm²
50 - 20000 Hz
QTS
0.53
xmax
2.0 mm
SPL1W
97 dB
Bl/√RE
2.08
Pmax
70 W
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8″Full-range
fS
65 Hz
SD
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45 - 18000 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
2.29
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fS
55 Hz
SD
360 cm²
50 - 4500 Hz
QTS
0.69
xmax
4.7 mm
SPL1W
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Bl/√RE
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Pmax
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