Scan-Speak 18W/8545K00

Mid Bass

8″ / 180 mm
Nominal diameter
28 Hz
Resonance
0.28
Q factor
87 dB
Sensitivity
± 6.5 mm
Linear excursion
170 W
Program Power
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
87.0
dB
Frequency response
28 - 3000
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
28.0
Hz
Mechanical quality factor
QMS
5.20
Electrical quality factor
QES
0.30
Total quality factor
QTS
0.28

Large signal parameters

Maximum linear excursion
xmax
6.5
mm
Maximum excursion before damage
xlim
10.0
mm
Air volume displaced at xmax
VD
94
cm³
Power handling
P
100
W
Program power
Pmax
170
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.5
Ω
Inductance (1kHz, estimated)
LE
0.48
mH
VC Diameter
42
mm
Winding height
HVC
19
mm
Former material
Glass Fiber

Magnet

Force factor
Bl
8.2
N/A
Motor constant
Bl/√RE
3.5
N/√W
Air gap height
HAG
6
mm

Diaphragm

Effective diameter
136
mm
Effective area
SD
145
cm²
Moving mass
MMS
20.5
g
Moving mass (without air load)
MMD
19.2
g
Material
Paper/Carbon Fibre

Suspensions

Stiffness
KMS
0.63
N/mm
Compliance
CMS
1580
µm/N
Equivalent volume to the compliance
VAS
46.4
L
Mechanical resistance
RMS
0.69
N·s/m
Surround material
SBR Rubber

Dimensions

Nominal diameter
8
180
mm
Volume occupied by the driver
0.54
L
Net weight
2.3
kg
Scan-Speak 18W/8545K00 SPL & Impedance
Scan-Speak 18W/8545K00 Dimensions

Export this driver to a simulation software:

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