Scan-Speak 18W/8542-10
Mid Bass
6.5″ / 180 mm
Nominal diameter
43 Hz
Resonance
0.35
Q factor
89 dB
Sensitivity
± 6.5 mm
Linear excursion
130 W
Program Power
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Sensitivity (1w, 1m, infinite baffle)
SPL1W
88.6
dB
Thiele & Small parameters
Resonance frequency (free air)
fS
43.0
Hz
Mechanical quality factor
QMS
1.70
Electrical quality factor
QES
0.44
Total quality factor
QTS
0.35
Large signal parameters
Maximum linear excursion
xmax
6.5
mm
Maximum excursion before damage
xlim
10.0
mm
Air volume displaced at xmax
VD
88
cm³
Power handling
P
70
W
Program power
Pmax
130
W
Voice Coil
Nominal impedance
Z
8
Ω
DC resistance
RE
5.7
Ω
Inductance (1kHz)
LE
0.2
mH
VC Diameter
42
mm
Winding height
HVC
19
mm
Magnet
Force factor
Bl
6.9
N/A
Motor constant
Bl/√RE
2.89
N/√W
Air gap height
HAG
6
mm
Diaphragm
Effective diameter
131
mm
Effective area
SD
135
cm²
Moving mass
MMS
13.6
g
Moving mass (without air load)
MMD
12.4
g
Material
Air Dried Paper/Nylon Fibre
Suspensions
Stiffness
KMS
1.0
N/mm
Compliance
CMS
1000
µm/N
Equivalent volume to the compliance
VAS
26
L
Mechanical resistance
RMS
2.1
N·s/m
Surround material
Coated Foam
Dimensions
Nominal diameter
6.5
″
180
mm
Volume occupied by the driver (estimated)
0.91
L
Net weight
2.2
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/8542-10
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8″Woofer
fS
43 Hz
SD
126 cm²
45 - 4000 Hz
QTS
0.37
xmax
6.0 mm
SPL1W
88 dB
Bl/√RE
2.84
Pmax
250 W
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