mivoc SWM 68
Subwoofer
6.5″ / 16 mm
Nominal diameter
47 Hz
Resonance
0.41
Q factor
85 dB
Sensitivity
± 6.3 mm
Linear excursion
200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
85.3
dB
Frequency response
35 - 1500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
47.0
Hz
Mechanical quality factor
QMS
2.00
Electrical quality factor
QES
0.52
Total quality factor
QTS
0.41
Large signal parameters
Maximum linear excursion
xmax
6.3
mm
Air volume displaced at xmax
VD
79
cm³
Power handling
P
120
W
Program power
Pmax
200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.6
Ω
Inductance (1kHz)
LE
0.65
mH
VC Diameter
38
mm
Winding height
HVC
18.5
mm
Magnet
Force factor
Bl
9.0
N/A
Motor constant
Bl/√RE
3.5
N/√W
Diaphragm
Effective diameter
126
mm
Effective area
SD
125
cm²
Moving mass
MMS
21.7
g
Moving mass (without air load)
MMD
20.7
g
Suspensions
Stiffness
KMS
1.92
N/mm
Compliance
CMS
521
µm/N
Equivalent volume to the compliance
VAS
11.5
L
Mechanical resistance
RMS
3.2
N·s/m
Dimensions
Nominal diameter
6.5
″
16
mm
Overall diameter
160
mm
Baffle cutout diameter
132
mm
Overall depth
85
mm
Flange thickness
7
mm
Mounting depth
78
mm
Volume occupied by the driver (estimated)
0.49
L
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fS
50 Hz
SD
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45 - 4000 Hz
QTS
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xmax
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SPL1W
86 dB
Bl/√RE
2.48
Pmax
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fS
46 Hz
SD
85 cm²
47 - 4200 Hz
QTS
0.37
xmax
4.0 mm
SPL1W
87 dB
Bl/√RE
2.29
Pmax
80 W