Eminence BETA-6A
Mid-range
6″ / 165 mm
Nominal diameter
123 Hz
Resonance
0.56
Q factor
92 dB
Sensitivity
± 4.5 mm
Linear excursion
350 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
91.7
dB
Frequency response
95 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
123
Hz
Mechanical quality factor
QMS
3.46
Electrical quality factor
QES
0.66
Total quality factor
QTS
0.56
Large signal parameters
Maximum linear excursion
xmax
4.5
mm
Maximum excursion before damage
xlim
5.7
mm
Air volume displaced at xmax
VD
59
cm³
Power handling
P
175
W
Program power
Pmax
350
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.2
Ω
Inductance (1kHz)
LE
0.43
mH
VC Diameter
51
mm
Winding material
Aluminum
Former material
Polyimide
Magnet
Force factor
Bl
8.13
N/A
Motor constant
Bl/√RE
3.57
N/√W
Air gap height
HAG
6.4
mm
Weight
0.85
kg
Material
Ferrite
Diaphragm
Effective diameter
129
mm
Effective area
SD
130
cm²
Moving mass
MMS
11
g
Moving mass (without air load)
MMD
9.9
g
Material
Water resistant paper
Suspensions
Stiffness
KMS
6.67
N/mm
Compliance
CMS
150
µm/N
Equivalent volume to the compliance
VAS
3.51
L
Mechanical resistance
RMS
2.46
N·s/m
Surround material
Treated cloth
Dimensions
Nominal diameter
6
″
165
mm
Overall diameter
167
mm
Baffle cutout diameter
144
mm
Overall depth
68
mm
Volume occupied by the driver
0.6
L
Net weight
2.54
kg
Frame material
Pressed steel
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QSpeakers
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fS
128 Hz
SD
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100 - 8000 Hz
QTS
0.52
xmax
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SPL1W
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Bl/√RE
4.41
Pmax
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fS
120 Hz
SD
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xmax
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SPL1W
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Bl/√RE
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fS
110 Hz
SD
128 cm²
100 - 10000 Hz
QTS
0.50
xmax
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SPL1W
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Bl/√RE
3.63
Pmax
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