MONACOR SP-308CX
Coaxial
8″ / 208 mm
Nominal diameter
80 Hz
Resonance
0.36
Q factor
95 dB
Sensitivity
± 2.5 mm
Linear excursion
300 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
95.1
dB
Frequency response
80 - 22000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
80.0
Hz
Mechanical quality factor
QMS
2.21
Electrical quality factor
QES
0.43
Total quality factor
QTS
0.36
Large signal parameters
Maximum linear excursion
xmax
2.5
mm
Air volume displaced at xmax
VD
55
cm³
Power handling
P
150
W
Program power
Pmax
300
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.58
mH
VC Diameter
50
mm
Winding material
Polyamide
Magnet
Force factor
Bl
12.1
N/A
Motor constant
Bl/√RE
5.02
N/√W
Diameter
126
mm
Weight
1.4
kg
Diaphragm
Effective diameter
168
mm
Effective area
SD
221
cm²
Moving mass
MMS
17
g
Moving mass (without air load)
MMD
14.6
g
Suspensions
Stiffness
KMS
4.55
N/mm
Compliance
CMS
220
µm/N
Equivalent volume to the compliance
VAS
15.4
L
Mechanical resistance
RMS
3.87
N·s/m
Dimensions
Nominal diameter
8
″
208 x 208
mm
Overall size
208 x 208
mm
Baffle cutout diameter
184
mm
Overall depth
169
mm
Flange thickness
10
mm
Mounting depth
159
mm
Volume occupied by the driver (estimated)
2.0
L
Net weight
4.8
kg
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