Micro-Precision 3.16 MK II
Woofer
6.5″ / 167 mm
Nominal diameter
61 Hz
Resonance
0.61
Q factor
88 dB
Sensitivity
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.3
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
61.0
Hz
Mechanical quality factor
QMS
4.50
Electrical quality factor
QES
0.71
Total quality factor
QTS
0.61
Large signal parameters
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.35
mH
Magnet
Force factor
Bl
5.1
N/A
Motor constant
Bl/√RE
2.73
N/√W
Diaphragm
Effective diameter
135
mm
Effective area
SD
143
cm²
Moving mass
MMS
13.7
g
Moving mass (without air load)
MMD
12.4
g
Suspensions
Stiffness
KMS
2.01
N/mm
Compliance
CMS
497
µm/N
Equivalent volume to the compliance
VAS
14.5
L
Mechanical resistance
RMS
1.16
N·s/m
Dimensions
Nominal diameter
6.5
″
167
mm
Overall diameter
167
mm
Baffle cutout diameter
145
mm
Overall depth
67
mm
Flange thickness
3
mm
Mounting depth
64
mm
Volume occupied by the driver (estimated)
0.52
L
Net weight
1.9
kg
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Similar woofers to Micro-Precision 3.16 MK II
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6″Woofer
fS
61 Hz
SD
149 cm²
63 - 5000 Hz
QTS
0.55
xmax
5.3 mm
SPL1W
89 dB
Bl/√RE
2.93
Pmax
200 W
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6″Woofer
fS
61 Hz
SD
149 cm²
63 - 5000 Hz
QTS
0.55
xmax
5.3 mm
SPL1W
89 dB
Bl/√RE
2.93
Pmax
200 W
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Goldwood GW-406D2 x 8 Ω
6.5″Woofer
fS
60 Hz
SD
136 cm²
59 - 6000 Hz
QTS
0.63
xmax
2.0 mm
SPL1W
88 dB
Bl/√RE
2.64
Pmax
90 W