12″ / 311 mm
Nominal diameter
33 Hz
Resonance
0.49
Q factor
89 dB
Sensitivity
± 5 mm
Linear excursion
450 W
Program Power
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Available on (affiliate link)
Parts Express
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Specifications
Sensitivity (1w, 1m, infinite baffle)
SPL1W
89.0
dB
Frequency response
20 - 3500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
3.83
Electrical quality factor
QES
0.56
Total quality factor
QTS
0.49
Large signal parameters
Maximum linear excursion
xmax
5.0
mm
Air volume displaced at xmax
VD
247
cm³
Power handling
P
225
W
Program power
Pmax
450
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.1
Ω
Inductance (1kHz)
LE
2.1
mH
VC Diameter
51
mm
Winding material
Aluminum
Magnet
Force factor
Bl
15.7
N/A
Motor constant
Bl/√RE
5.89
N/√W
Weight
1.417
kg
Diaphragm
Effective diameter
251
mm
Effective area
SD
494
cm²
Moving mass
MMS
93.1
g
Moving mass (without air load)
MMD
85.1
g
Material
Poly-Mica
Suspensions
Stiffness
KMS
3.99
N/mm
Compliance
CMS
251
µm/N
Equivalent volume to the compliance
VAS
85.9
L
Mechanical resistance
RMS
5.04
N·s/m
Surround material
Rubber
Dimensions
Nominal diameter
12
″
311
mm
Overall diameter
311
mm
Baffle cutout diameter
283
mm
Mounting depth
137
mm
Volume occupied by the driver (estimated)
1.0
L
Net weight
2.438
kg
Frame material
Die Cast Aluminum
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QSpeakers
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SpeakerbenchSimilar subwoofers to Goldwood GW-12PC/8
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12″Subwoofer
fS
32 Hz
SD
515 cm²
32 - 450 Hz
QTS
0.51
xmax
8.0 mm
SPL1W
89 dB
Bl/√RE
6.43
Pmax
500 W
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10″Woofer
fS
34 Hz
SD
360 cm²
35 - 1000 Hz
QTS
0.53
xmax
8.5 mm
SPL1W
88 dB
Bl/√RE
4.34
Pmax
300 W
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15″Subwoofer
fS
36 Hz
SD
855 cm²
35 - 1000 Hz
QTS
0.44
xmax
10.5 mm
SPL1W
90 dB
Bl/√RE
10
Pmax
2000 W