Beyma 3FR30V2
Full-range
3″ / 77 mm
Nominal diameter
133 Hz
Resonance
0.51
Q factor
87 dB
Sensitivity
± 2 mm
Linear excursion
60 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.0
dB
Frequency response
135 - 20000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
133
Hz
Mechanical quality factor
QMS
5.90
Electrical quality factor
QES
0.56
Total quality factor
QTS
0.51
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
6.0
cm³
Power handling
P
30
W
Program power
Pmax
60
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.16
mH
VC Diameter
20
mm
Winding height
HVC
6
mm
Magnet
Force factor
Bl
4.5
N/A
Motor constant
Bl/√RE
1.87
N/√W
Air gap height
HAG
5
mm
Diaphragm
Effective diameter
62
mm
Effective area
SD
30
cm²
Moving mass
MMS
2.3
g
Moving mass (without air load)
MMD
2.2
g
Suspensions
Stiffness
KMS
1.6
N/mm
Compliance
CMS
624
µm/N
Equivalent volume to the compliance
VAS
1
L
Mechanical resistance
RMS
0.32
N·s/m
Dimensions
Nominal diameter
3
″
77
mm
Overall diameter
94
mm
Baffle cutout diameter
75
mm
Overall depth
52
mm
Volume occupied by the driver (estimated)
0.14
L
Net weight
0.57
kg
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Export this driver to a simulation software:
WinISD
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Hornresp
QSpeakers
SpeakerSim
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SpeakerbenchSimilar speaker drivers to Beyma 3FR30V2
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3″Full-range
fS
118 Hz
SD
29 cm²
150 - 20000 Hz
QTS
0.50
xmax
2.4 mm
SPL1W
87 dB
Bl/√RE
1.74
Pmax
60 W
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3.3″Full-range
fS
125 Hz
SD
29 cm²
100 - 20000 Hz
QTS
0.49
SPL1W
87 dB
Bl/√RE
1.49
Pmax
50 W
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Fountek FE858 Ω
3.5″Full-range
fS
125 Hz
SD
27 cm²
100 - 25000 Hz
QTS
0.52
xmax
1.5 mm
SPL1W
85 dB
Bl/√RE
1.51
Pmax
24 W