MONACOR SPH-250CTC
Subwoofer
10″ / 258 mm
Nominal diameter
20 Hz
Resonance
0.25
Q factor
87 dB
Sensitivity
± 4.5 mm
Linear excursion
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.3
dB
Frequency response
20 - 3500
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
20.0
Hz
Mechanical quality factor
QMS
5.12
Electrical quality factor
QES
0.26
Total quality factor
QTS
0.25
Large signal parameters
Maximum linear excursion
xmax
4.5
mm
Air volume displaced at xmax
VD
154
cm³
Power handling
P
200
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
2 x 8
Ω
DC resistance (in series)
RE
13.6
Ω
Inductance (1kHz, in series)
LE
4.0
mH
VC Diameter
50
mm
Winding material
Kapton
Magnet
Force factor (in series)
Bl
19.2
N/A
Motor constant
Bl/√RE
5.21
N/√W
Diameter
145
mm
Weight
1.2
kg
Diaphragm
Effective diameter
209
mm
Effective area
SD
343
cm²
Moving mass
MMS
70
g
Moving mass (without air load)
MMD
65.4
g
Suspensions
Stiffness
KMS
1.02
N/mm
Compliance
CMS
980
µm/N
Equivalent volume to the compliance
VAS
220
L
Mechanical resistance
RMS
1.72
N·s/m
Dimensions
Nominal diameter
10
″
258
mm
Overall diameter
258
mm
Baffle cutout diameter
232
mm
Overall depth
123
mm
Flange thickness
0
mm
Mounting depth
123
mm
Volume occupied by the driver (estimated)
1.6
L
Net weight
3.8
kg
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SpeakerbenchSimilar subwoofers to MONACOR SPH-250CTC
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10″Woofer
fS
23 Hz
SD
346 cm²
23 - 3000 Hz
QTS
0.28
xmax
8.0 mm
SPL1W
87 dB
Bl/√RE
4.31
Pmax
500 W
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