MONACOR SPH-210
Mid-range
8″ / 210 mm
Nominal diameter
28 Hz
Resonance
0.24
Q factor
90 dB
Sensitivity
± 3.5 mm
Linear excursion
100 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
89.8
dB
Frequency response
28 - 4000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
28.0
Hz
Mechanical quality factor
QMS
2.14
Electrical quality factor
QES
0.27
Total quality factor
QTS
0.24
Large signal parameters
Maximum linear excursion
xmax
3.5
mm
Air volume displaced at xmax
VD
74
cm³
Power handling
P
50
W
Program power
Pmax
100
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.5
Ω
Inductance (1kHz)
LE
1.0
mH
VC Diameter
36
mm
Winding material
Aluminium
Magnet
Force factor
Bl
10.3
N/A
Motor constant
Bl/√RE
4.04
N/√W
Diameter
120
mm
Weight
0.84
kg
Diaphragm
Effective diameter
164
mm
Effective area
SD
210
cm²
Moving mass
MMS
24.5
g
Moving mass (without air load)
MMD
22.2
g
Suspensions
Stiffness
KMS
0.76
N/mm
Compliance
CMS
1320
µm/N
Equivalent volume to the compliance
VAS
81
L
Mechanical resistance
RMS
2.01
N·s/m
Dimensions
Nominal diameter
8
″
210
mm
Overall diameter
210
mm
Baffle cutout diameter
183
mm
Overall depth
99
mm
Flange thickness
10
mm
Mounting depth
89
mm
Volume occupied by the driver (estimated)
0.93
L
Net weight
2.52
kg
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