4″ / 100 mm
Nominal diameter
65 Hz
Resonance
0.46
Q factor
85 dB
Sensitivity
± 2 mm
Linear excursion
50 W
Program Power
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.3
dB
Frequency response
65 - 15000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
65.0
Hz
Mechanical quality factor
QMS
3.04
Electrical quality factor
QES
0.54
Total quality factor
QTS
0.46
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Maximum excursion before damage
xlim
4.0
mm
Air volume displaced at xmax
VD
11
cm³
Power handling
P
30
W
Program power
Pmax
50
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.4
Ω
Inductance (1kHz)
LE
0.5
mH
VC Diameter
20
mm
Winding height
HVC
8
mm
Magnet
Flux density
B
1.0
T
Force factor
Bl
3.7
N/A
Motor constant
Bl/√RE
2.01
N/√W
Air gap height
HAG
4
mm
Diaphragm
Effective diameter
82
mm
Effective area
SD
53
cm²
Moving mass
MMS
5.3
g
Moving mass (without air load)
MMD
5
g
Suspensions
Stiffness
KMS
0.89
N/mm
Compliance
CMS
1127
µm/N
Equivalent volume to the compliance
VAS
4.49
L
Mechanical resistance
RMS
0.71
N·s/m
Dimensions
Nominal diameter
4
″
100
mm
Baffle cutout diameter
94
mm
Volume occupied by the driver (estimated)
0.19
L
Net weight
0.49
kg
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5″Woofer
fS
70 Hz
SD
54 cm²
70 - 12000 Hz
QTS
0.48
xmax
4.0 mm
SPL1W
86 dB
Bl/√RE
1.98
Pmax
60 W