6.5″ / 180 mm
Nominal diameter
65 Hz
Resonance
0.6
Q factor
89 dB
Sensitivity
± 3 mm
Linear excursion
250 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
89.4
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
65.0
Hz
Mechanical quality factor
QMS
5.65
Electrical quality factor
QES
0.67
Total quality factor
QTS
0.60
Large signal parameters
Maximum linear excursion
xmax
3.0
mm
Maximum excursion before damage
xlim
14.5
mm
Air volume displaced at xmax
VD
46
cm³
Power handling
P
120
W
Program power
Pmax
250
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.5
Ω
Inductance (1kHz)
LE
0.16
mH
VC Diameter
38
mm
Winding height
HVC
11
mm
Former material
Titanium
Magnet
Force factor
Bl
5.6
N/A
Motor constant
Bl/√RE
2.99
N/√W
Air gap height
HAG
5
mm
Material
Ferrite
Diaphragm
Effective diameter
138
mm
Effective area
SD
154
cm²
Moving mass
MMS
14.3
g
Moving mass (without air load)
MMD
12.9
g
Material
Sliced Paper
Suspensions
Stiffness
KMS
2.38
N/mm
Compliance
CMS
420
µm/N
Equivalent volume to the compliance
VAS
14
L
Mechanical resistance
RMS
1.03
N·s/m
Surround material
Coated Foam
Dimensions
Nominal diameter
6.5
″
180
mm
Volume occupied by the driver (estimated)
0.69
L
Net weight
1.7
kg
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar speaker drivers to Scan-Speak 18M/4631T00
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6″Woofer
fS
61 Hz
SD
149 cm²
63 - 5000 Hz
QTS
0.55
xmax
5.3 mm
SPL1W
89 dB
Bl/√RE
2.93
Pmax
200 W
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6″Woofer
fS
61 Hz
SD
149 cm²
63 - 5000 Hz
QTS
0.55
xmax
5.3 mm
SPL1W
89 dB
Bl/√RE
2.93
Pmax
200 W
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6.5″Mid-range
fS
65 Hz
SD
154 cm²
QTS
0.71
xmax
3.0 mm
SPL1W
89 dB
Bl/√RE
2.65
Pmax
250 W