6.5″ / 180 mm
Nominal diameter
28 Hz
Resonance
0.36
Q factor
87 dB
Sensitivity
± 6.5 mm
Linear excursion
70 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
86.8
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
28.0
Hz
Mechanical quality factor
QMS
5.10
Electrical quality factor
QES
0.39
Total quality factor
QTS
0.36
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
60
W
Program power
Pmax
70
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.8
Ω
Inductance (1kHz)
LE
0.35
mH
VC Diameter
38
mm
Winding height
HVC
18
mm
Magnet
Force factor
Bl
6.8
N/A
Motor constant
Bl/√RE
2.82
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
0.54
N/mm
Compliance
CMS
1850
µm/N
Equivalent volume to the compliance
VAS
58.2
L
Mechanical resistance
RMS
0.6
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/8531G00
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8″Mid-range
fS
28 Hz
SD
207 cm²
28 - 4500 Hz
QTS
0.38
xmax
4.8 mm
SPL1W
86 dB
Bl/√RE
3.98
Pmax
120 W
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8″Subwoofer
fS
29 Hz
SD
220 cm²
30 - 2000 Hz
QTS
0.36
xmax
5.0 mm
SPL1W
88 dB
Bl/√RE
3.58
Pmax
300 W