MONACOR SPH-315
Woofer
12″ / 305 mm
Nominal diameter
22 Hz
Resonance
0.24
Q factor
93 dB
Sensitivity
± 4.5 mm
Linear excursion
200 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
92.6
dB
Frequency response
22 - 2000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
22.0
Hz
Mechanical quality factor
QMS
2.40
Electrical quality factor
QES
0.26
Total quality factor
QTS
0.24
Large signal parameters
Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
230
cm³
Power handling
P
100
W
Program power
Pmax
200
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.1
Ω
Inductance (1kHz)
LE
1.5
mH
VC Diameter
50
mm
Winding material
Aluminium
Magnet
Force factor
Bl
13.4
N/A
Motor constant
Bl/√RE
5.43
N/√W
Diameter
156
mm
Weight
1.4
kg
Diaphragm
Effective diameter
255
mm
Effective area
SD
510
cm²
Moving mass
MMS
55
g
Moving mass (without air load)
MMD
46.8
g
Suspensions
Stiffness
KMS
1.05
N/mm
Compliance
CMS
950
µm/N
Equivalent volume to the compliance
VAS
330
L
Mechanical resistance
RMS
3.17
N·s/m
Dimensions
Nominal diameter
12
″
305
mm
Overall diameter
305
mm
Baffle cutout diameter
278
mm
Overall depth
136
mm
Flange thickness
10
mm
Mounting depth
126
mm
Volume occupied by the driver (estimated)
2.0
L
Net weight
4.2
kg
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SpeakerbenchSimilar woofers to MONACOR SPH-315
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MONACOR SPH-390TC2 x 8 Ω
15″Subwoofer
fS
23 Hz
SD
850 cm²
23 - 1500 Hz
QTS
0.26
xmax
7.0 mm
SPL1W
93 dB
Bl/√RE
9.65
Pmax
600 W
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MONACOR SPH-300TC2 x 8 Ω
12″Subwoofer
fS
23 Hz
SD
495 cm²
23 - 2000 Hz
QTS
0.24
xmax
4.0 mm
SPL1W
91 dB
Bl/√RE
5.76
Pmax
500 W
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MONACOR SPH-380TC2 x 4 Ω
15″Subwoofer
fS
22 Hz
SD
845 cm²
21 - 800 Hz
QTS
0.28
xmax
11.1 mm
SPL1W
91 dB
Bl/√RE
9.32
Pmax
800 W