6.5″ / 180 mm
Nominal diameter
33 Hz
Resonance
0.35
Q factor
88 dB
Sensitivity
± 6.5 mm
Linear excursion
110 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
87.6
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
33.0
Hz
Mechanical quality factor
QMS
5.20
Electrical quality factor
QES
0.38
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
6.5
mm
Maximum excursion before damage
xlim
11.0
mm
Air volume displaced at xmax
VD
98
cm³
Power handling
P
70
W
Program power
Pmax
110
W
Voice Coil
Nominal impedance
Z
4
Ω
DC resistance
RE
3.4
Ω
Inductance (1kHz)
LE
0.3
mH
VC Diameter
38
mm
Winding height
HVC
17.5
mm
Magnet
Force factor
Bl
5.7
N/A
Motor constant
Bl/√RE
3.09
N/√W
Air gap height
HAG
5
mm
Material
Ferrite
Diaphragm
Effective diameter
138
mm
Effective area
SD
150
cm²
Moving mass
MMS
17.5
g
Moving mass (without air load)
MMD
16.1
g
Material
Sliced Paper
Suspensions
Stiffness
KMS
0.75
N/mm
Compliance
CMS
1330
µm/N
Equivalent volume to the compliance
VAS
41.9
L
Mechanical resistance
RMS
0.7
N·s/m
Surround material
SBR Rubber
Dimensions
Nominal diameter
6.5
″
180
mm
Volume occupied by the driver (estimated)
0.69
L
Net weight
1.7
kg
Frame material
Aluminium
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
SpeakerbenchSimilar woofers to Scan-Speak 18W/4531G00
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6.75″Mid-range
fS
33 Hz
SD
137 cm²
33 - 5000 Hz
QTS
0.35
xmax
2.0 mm
SPL1W
88 dB
Bl/√RE
2.51
Pmax
100 W
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8″Woofer
fS
35 Hz
SD
168 cm²
35 - 5000 Hz
QTS
0.30
xmax
6.0 mm
SPL1W
88 dB
Bl/√RE
3.4
Pmax
300 W