MONACOR SPH-6M
Woofer
6.5″ / 180 mm
Nominal diameter
39 Hz
Resonance
0.3
Q factor
87 dB
Sensitivity
± 4 mm
Linear excursion
120 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.9
dB
Frequency response
39 - 3000
Hz
Thiele & Small parameters
Resonance frequency (free air)
fS
39.0
Hz
Mechanical quality factor
QMS
2.26
Electrical quality factor
QES
0.35
Total quality factor
QTS
0.30
Large signal parameters
Maximum linear excursion
xmax
4.0
mm
Air volume displaced at xmax
VD
51
cm³
Power handling
P
60
W
Program power
Pmax
120
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
6.3
Ω
Inductance (1kHz)
LE
0.82
mH
VC Diameter
37
mm
Winding material
Aluminium
Magnet
Force factor
Bl
9.68
N/A
Motor constant
Bl/√RE
3.85
N/√W
Diameter
100
mm
Weight
0.63
kg
Diaphragm
Effective diameter
127
mm
Effective area
SD
127
cm²
Moving mass
MMS
20
g
Moving mass (without air load)
MMD
18.9
g
Suspensions
Stiffness
KMS
1.28
N/mm
Compliance
CMS
780
µm/N
Equivalent volume to the compliance
VAS
17.6
L
Mechanical resistance
RMS
2.17
N·s/m
Dimensions
Nominal diameter
6.5
″
180
mm
Overall diameter
180
mm
Baffle cutout diameter
144
mm
Overall depth
92
mm
Flange thickness
5
mm
Mounting depth
87
mm
Volume occupied by the driver (estimated)
0.69
L
Net weight
2.005
kg
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