Goldwood GW-1538/PA

Subwoofer

15″ / 391 mm
Nominal diameter
41 Hz
Resonance
1.36
Q factor
93 dB
Sensitivity
± 2.5 mm
Linear excursion
270 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
92.9
dB
Frequency response
35 - 7000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
41.2
Hz
Mechanical quality factor
QMS
5.95
Electrical quality factor
QES
1.76
Total quality factor
QTS
1.36

Large signal parameters

Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
210
cm³
Power handling
P
140
W
Program power
Pmax
270
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
7.0
Ω
Inductance (1kHz)
LE
0.6
mH
VC Diameter
38
mm
Winding material
Aluminum

Magnet

Force factor
Bl
9.23
N/A
Motor constant
Bl/√RE
3.49
N/√W
Weight
0.85
kg

Diaphragm

Effective diameter
327
mm
Effective area
SD
840
cm²
Moving mass
MMS
82.2
g
Moving mass (without air load)
MMD
65
g
Material
Paper

Suspensions

Stiffness
KMS
5.5
N/mm
Compliance
CMS
182
µm/N
Equivalent volume to the compliance
VAS
180
L
Mechanical resistance
RMS
3.58
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
Goldwood GW-1538/PA SPL & Impedance

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