Goldwood GW-206/4

Woofer

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
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

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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
Goldwood GW-206/4 SPL & Impedance

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