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
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
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
mivoc SWM 68 Impedance
mivoc SWM 68 SPL

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