Beyma 605Nd
Mid-range
6.5″ / 165 mm
Nominal diameter
150 Hz
Resonance
0.31
Q factor
97 dB
Sensitivity
± 1 mm
Linear excursion
250 W
Program Power
Discontinued
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.6
dB
Frequency response
150 - 8000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
150
Hz
Mechanical quality factor
QMS
9.68
Electrical quality factor
QES
0.32
Total quality factor
QTS
0.31
Large signal parameters
Maximum linear excursion
xmax
1.0
mm
Air volume displaced at xmax
VD
14
cm³
Power handling
P
125
W
Program power
Pmax
250
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.0
Ω
Inductance (1kHz)
LE
0.5
mH
VC Diameter
39
mm
Winding height
HVC
7
mm
Magnet
Force factor
Bl
13.15
N/A
Motor constant
Bl/√RE
5.37
N/√W
Air gap height
HAG
6
mm
Material
Neodymium
Diaphragm
Effective diameter
134
mm
Effective area
SD
140
cm²
Moving mass
MMS
10
g
Moving mass (without air load)
MMD
8.8
g
Suspensions
Stiffness
KMS
10.0
N/mm
Compliance
CMS
100
µm/N
Equivalent volume to the compliance
VAS
3
L
Mechanical resistance
RMS
1.1
N·s/m
Dimensions
Nominal diameter
6.5
″
165
mm
Volume occupied by the driver (estimated)
0.61
L
Net weight
1.5
kg
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8″Coaxial
fS
130 Hz
SD
230 cm²
100 - 23000 Hz
QTS
0.26
xmax
3.2 mm
SPL1W
97 dB
Bl/√RE
8.58
Pmax
600 W
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6.5″Mid-range
fS
120 Hz
SD
143 cm²
200 - 8000 Hz
QTS
0.24
xmax
2.0 mm
SPL1W
97 dB
Bl/√RE
4.78
Pmax
240 W
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6″Mid-range
fS
135 Hz
SD
139 cm²
130 - 6000 Hz
QTS
0.35
xmax
2.0 mm
SPL1W
95 dB
Bl/√RE
4.9
Pmax
300 W