Goldwood GW-1558
Subwoofer
15″ / 391 mm
Nominal diameter
31 Hz
Resonance
0.63
Q factor
96 dB
Sensitivity
± 2 mm
Linear excursion
300 W
Program Power
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Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
96.1
dB
Frequency response
28 - 4400
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
31.0
Hz
Mechanical quality factor
QMS
3.70
Electrical quality factor
QES
0.76
Total quality factor
QTS
0.63
Large signal parameters
Maximum linear excursion
xmax
2.0
mm
Air volume displaced at xmax
VD
175
cm³
Power handling
P
200
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.3
Ω
Inductance (1kHz)
LE
0.1
mH
VC Diameter
64
mm
Winding material
Aluminum
Magnet
Force factor
Bl
9.8
N/A
Motor constant
Bl/√RE
4.26
N/√W
Weight
1.417
kg
Diaphragm
Effective diameter
333
mm
Effective area
SD
873
cm²
Moving mass
MMS
70.5
g
Moving mass (without air load)
MMD
52.6
g
Material
Polymer
Suspensions
Stiffness
KMS
2.68
N/mm
Compliance
CMS
374
µm/N
Equivalent volume to the compliance
VAS
400
L
Mechanical resistance
RMS
3.71
N·s/m
Dimensions
Nominal diameter
15
″
391
mm
Overall diameter
391
mm
Baffle cutout diameter
356
mm
Mounting depth
159
mm
Volume occupied by the driver (estimated)
1.2
L
Net weight
2.835
kg
Frame material
Stamped Steel
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