BMS 5CN140
Coaxial
5″ / 135 mm
Nominal diameter
138 Hz
Resonance
0.69
Q factor
88 dB
Sensitivity
± 3.5 mm
Linear excursion
240 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.5
dB
Frequency response
80 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
138
Hz
Mechanical quality factor
QMS
3.40
Electrical quality factor
QES
0.87
Total quality factor
QTS
0.69
Large signal parameters
Maximum linear excursion
xmax
3.5
mm
Air volume displaced at xmax
VD
26
cm³
Power handling
P
120
W
Program power
Pmax
240
W
Voice Coil
Nominal impedance
Z
16
Ω
DC resistance
RE
12.2
Ω
Inductance (1kHz)
LE
0.45
mH
VC Diameter
38
mm
Winding height
HVC
12
mm
Winding material
Copper
Former material
Kapton
Magnet
Flux density
B
2.0
T
Force factor
Bl
10.7
N/A
Motor constant
Bl/√RE
3.06
N/√W
Air gap height
HAG
5
mm
Material
Neodymium
Diaphragm
Effective diameter
97
mm
Effective area
SD
74
cm²
Moving mass
MMS
9
g
Moving mass (without air load)
MMD
8.5
g
Material
Polyester
Suspensions
Stiffness
KMS
7.14
N/mm
Compliance
CMS
140
µm/N
Equivalent volume to the compliance
VAS
1.03
L
Mechanical resistance
RMS
2.3
N·s/m
Dimensions
Nominal diameter
5
″
135 x 135
mm
Overall size
135 x 135
mm
Baffle cutout diameter
117
mm
Overall depth
82
mm
Volume occupied by the driver (estimated)
0.34
L
Net weight
0.98
kg
Frame material
Cast Aluminum
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4″Woofer
fS
123 Hz
SD
54 cm²
120 - 11000 Hz
QTS
0.57
xmax
2.8 mm
SPL1W
88 dB
Bl/√RE
2.47
Pmax
80 W
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5.5″Coaxial
fS
158 Hz
SD
95 cm²
160 - 20000 Hz
QTS
0.59
xmax
3.0 mm
SPL1W
90 dB
Bl/√RE
3.44