Scan-Speak Ellipticor 18WE/8542T00

Mid Bass

8″ / 180 mm
Nominal diameter
50 Hz
Resonance
0.32
Q factor
89 dB
Sensitivity
± 7.7 mm
Linear excursion
100 W
Program Power
Scan-Speak 18WE/8542T00 Mid BassScan-Speak 18WE/8542T00 Mid BassScan-Speak 18WE/8542T00 Mid Bass
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply
Sensitivity (1W, 1m, infinite baffle)
SPL1W
89.3
dB
Frequency response
50 - 6000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
50.0
Hz
Mechanical quality factor
QMS
5.01
Electrical quality factor
QES
0.34
Total quality factor
QTS
0.32

Large signal parameters

Maximum linear excursion
xmax
7.7
mm
Maximum excursion before damage
xlim
12.0
mm
Air volume displaced at xmax
VD
102
cm³
Power handling
P
50
W
Program power
Pmax
100
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
6.3
Ω
Inductance (1kHz, estimated)
LE
0.47
mH
VC Diameter
45
mm
Winding height
HVC
20.4
mm

Magnet

Force factor
Bl
9.7
N/A
Motor constant
Bl/√RE
3.86
N/√W
Air gap height
HAG
5
mm

Diaphragm

Effective diameter
130
mm
Effective area
SD
133
cm²
Moving mass
MMS
16
g
Moving mass (without air load)
MMD
14.8
g

Suspensions

Stiffness
KMS
1.56
N/mm
Compliance
CMS
640
µm/N
Equivalent volume to the compliance
VAS
16
L
Mechanical resistance
RMS
1.0
N·s/m

Dimensions

Nominal diameter
8
″
180
mm
Volume occupied by the driver
0.32
L
Net weight
1.7
kg
SPL & Impedance
Scan-Speak 18WE/8542T00 SPL & Impedance
Scan-Speak 18WE/8542T00 Dimensions
DatasheetDatasheet

Export this driver to a simulation software:

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fS
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SD
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QTS
0.32
xmax
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SPL1W
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Bl/√RE
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Pmax
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