MONACOR SP-8/150PRO
Subwoofer
8″ / 210 mm
Nominal diameter
56 Hz
Resonance
0.32
Q factor
91 dB
Sensitivity
± 6 mm
Linear excursion
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
91.0
dB
Frequency response
56 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
56.0
Hz
Mechanical quality factor
QMS
1.52
Electrical quality factor
QES
0.41
Total quality factor
QTS
0.32
Large signal parameters
Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
128
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
7.2
Ω
Inductance (1kHz)
LE
2.0
mH
VC Diameter
50
mm
Winding material
Aluminium
Magnet
Force factor
Bl
11.96
N/A
Motor constant
Bl/√RE
4.46
N/√W
Diameter
120
mm
Weight
0.85
kg
Diaphragm
Effective diameter
165
mm
Effective area
SD
213
cm²
Moving mass
MMS
22.8
g
Moving mass (without air load)
MMD
20.5
g
Suspensions
Stiffness
KMS
2.86
N/mm
Compliance
CMS
350
µm/N
Equivalent volume to the compliance
VAS
22
L
Mechanical resistance
RMS
5.28
N·s/m
Dimensions
Nominal diameter
8
″
210
mm
Overall diameter
210
mm
Baffle cutout diameter
185
mm
Overall depth
100
mm
Flange thickness
10
mm
Mounting depth
90
mm
Volume occupied by the driver (estimated)
0.94
L
Net weight
2.52
kg
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SpeakerbenchSimilar subwoofers to MONACOR SP-8/150PRO
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8″Subwoofer
fS
54 Hz
SD
214 cm²
50 - 3500 Hz
QTS
0.33
xmax
5.0 mm
SPL1W
91 dB
Bl/√RE
5.27
Pmax
600 W
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8″Woofer
fS
58 Hz
SD
209 cm²
70 - 5000 Hz
QTS
0.37
xmax
8.2 mm
SPL1W
91 dB
Bl/√RE
5.09
Pmax
400 W