Goldwood GW-1258
Subwoofer
12″ / 308 mm
Nominal diameter
42 Hz
Resonance
0.48
Q factor
97 dB
Sensitivity
± 2 mm
Linear excursion
290 W
Program Power
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Parts Express
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Specifications
Sensitivity (1W, 1m, infinite baffle)
SPL1W
96.7
dB
Frequency response
33 - 5000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
41.5
Hz
Mechanical quality factor
QMS
3.10
Electrical quality factor
QES
0.56
Total quality factor
QTS
0.48
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
117
cm³
Power handling
P
190
W
Program power
Pmax
290
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
0.06
mH
VC Diameter
64
mm
Winding material
Aluminum
Magnet
Force factor
Bl
10.44
N/A
Motor constant
Bl/√RE
4.53
N/√W
Weight
1.417
kg
Diaphragm
Effective diameter
273
mm
Effective area
SD
586
cm²
Moving mass
MMS
45
g
Moving mass (without air load)
MMD
35.5
g
Material
Polymer
Suspensions
Stiffness
KMS
3.05
N/mm
Compliance
CMS
328
µm/N
Equivalent volume to the compliance
VAS
158
L
Mechanical resistance
RMS
3.79
N·s/m
Dimensions
Nominal diameter
12
″
308
mm
Overall diameter
308
mm
Baffle cutout diameter
276
mm
Mounting depth
130
mm
Volume occupied by the driver (estimated)
0.96
L
Net weight
2.325
kg
Frame material
Stamped Steel
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