MONACOR SPP-250
Woofer
10″ / 255 mm
Nominal diameter
30 Hz
Resonance
0.9
Q factor
88 dB
Sensitivity
± 3.5 mm
Linear excursion
75 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.5
dB
Frequency response
30 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
30.0
Hz
Mechanical quality factor
QMS
3.29
Electrical quality factor
QES
1.25
Total quality factor
QTS
0.90
Large signal parameters
Maximum linear excursion
xmax
3.5
mm
Air volume displaced at xmax
VD
121
cm³
Power handling
P
37
W
Program power
Pmax
75
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz)
LE
0.8
mH
VC Diameter
36
mm
Winding material
Aluminium
Magnet
Force factor
Bl
5.4
N/A
Motor constant
Bl/√RE
2.12
N/√W
Diameter
100
mm
Weight
0.37
kg
Diaphragm
Effective diameter
210
mm
Effective area
SD
346
cm²
Moving mass
MMS
30
g
Moving mass (without air load)
MMD
25.4
g
Suspensions
Stiffness
KMS
1.09
N/mm
Compliance
CMS
920
µm/N
Equivalent volume to the compliance
VAS
155
L
Mechanical resistance
RMS
1.72
N·s/m
Dimensions
Nominal diameter
10
″
255
mm
Overall diameter
255
mm
Baffle cutout diameter
235
mm
Overall depth
110
mm
Flange thickness
9
mm
Mounting depth
101
mm
Volume occupied by the driver (estimated)
0.8
L
Net weight
1.491
kg
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fS
33 Hz
SD
526 cm²
18 - 4500 Hz
QTS
1.00
xmax
3.0 mm
SPL1W
87 dB
Bl/√RE
3.75
Pmax
290 W
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fS
34 Hz
SD
355 cm²
29 - 6000 Hz
QTS
0.88
xmax
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SPL1W
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Bl/√RE
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Pmax
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8″Woofer
fS
36 Hz
SD
218 cm²
25 - 6000 Hz
QTS
0.92
xmax
2.5 mm
SPL1W
85 dB
Bl/√RE
2.24
Pmax
190 W