MONACOR SPH-390TC
Subwoofer
15″ / 385 mm
Nominal diameter
23 Hz
Resonance
0.26
Q factor
93 dB
Sensitivity
± 7 mm
Linear excursion
600 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
93.0
dB
Frequency response
23 - 1500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
23.0
Hz
Mechanical quality factor
QMS
6.36
Electrical quality factor
QES
0.29
Total quality factor
QTS
0.26
Large signal parameters
Maximum linear excursion
xmax
7.0
mm
Air volume displaced at xmax
VD
595
cm³
Power handling
P
300
W
Program power
Pmax
600
W
Voice Coil
Nominal impedance
Z
2 x 8
Ω
DC resistance (in series)
RE
12.0
Ω
Inductance (1kHz, in series)
LE
5.2
mH
VC Diameter
66
mm
Winding material
Kapton
Magnet
Force factor (in series)
Bl
33.44
N/A
Motor constant
Bl/√RE
9.65
N/√W
Diameter
182
mm
Weight
1.8
kg
Diaphragm
Effective diameter
329
mm
Effective area
SD
850
cm²
Moving mass
MMS
160
g
Moving mass (without air load)
MMD
142.8
g
Suspensions
Stiffness
KMS
3.33
N/mm
Compliance
CMS
300
µm/N
Equivalent volume to the compliance
VAS
284
L
Mechanical resistance
RMS
3.64
N·s/m
Dimensions
Nominal diameter
15
″
385
mm
Overall diameter
385
mm
Baffle cutout diameter
348
mm
Overall depth
170
mm
Flange thickness
10
mm
Mounting depth
160
mm
Volume occupied by the driver (estimated)
3.7
L
Net weight
6.78
kg
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fS
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SD
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QTS
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SPL1W
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Bl/√RE
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fS
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SD
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30 - 800 Hz
QTS
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xmax
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SPL1W
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Bl/√RE
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Pmax
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