6.5″ / 165 mm
Nominal diameter
59 Hz
Resonance
0.61
Q factor
87 dB
Sensitivity
± 2.5 mm
Linear excursion
180 W
Program Power
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Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.4
dB
Frequency response
56 - 8000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
58.9
Hz
Mechanical quality factor
QMS
3.84
Electrical quality factor
QES
0.73
Total quality factor
QTS
0.61
Large signal parameters
Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
34
cm³
Power handling
P
90
W
Program power
Pmax
180
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.7
Ω
Inductance (1kHz)
LE
0.4
mH
VC Diameter
38
mm
Winding material
Aluminum
Magnet
Force factor
Bl
5.19
N/A
Motor constant
Bl/√RE
2.7
N/√W
Weight
0.567
kg
Diaphragm
Effective diameter
132
mm
Effective area
SD
136
cm²
Moving mass
MMS
14.4
g
Moving mass (without air load)
MMD
13.2
g
Material
Poly
Suspensions
Stiffness
KMS
1.97
N/mm
Compliance
CMS
507
µm/N
Equivalent volume to the compliance
VAS
13.2
L
Mechanical resistance
RMS
1.39
N·s/m
Surround material
Rolled Foam
Dimensions
Nominal diameter
6.5
″
165
mm
Overall diameter
165
mm
Baffle cutout diameter
146
mm
Mounting depth
76
mm
Volume occupied by the driver (estimated)
0.55
L
Net weight
1.361
kg
Frame material
Stamped Steel
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SpeakerbenchSimilar woofers to Goldwood GW-206/4
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6.5″Woofer
fS
60 Hz
SD
136 cm²
50 - 5000 Hz
QTS
0.60
xmax
5.1 mm
SPL1W
88 dB
Bl/√RE
2.74
Pmax
240 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