Eighteen Sound 8MB500 8Ω

Woofer

8″ / 200 mm
Nominal diameter
74 Hz
Resonance
0.43
Q factor
93 dB
Sensitivity
± 6 mm
Linear excursion
400 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
93.4
dB
Frequency response
60 - 4500
Hz

Thiele & Small parameters

Resonance frequency (free air)
fS
74.0
Hz
Mechanical quality factor
QMS
2.66
Electrical quality factor
QES
0.51
Total quality factor
QTS
0.43

Large signal parameters

Maximum linear excursion
xmax
6.0
mm
Air volume displaced at xmax
VD
138
cm³
Power handling
P
280
W
Program power
Pmax
400
W

Voice Coil

Nominal impedance
Z
8
Ω
DC resistance
RE
5.1
Ω
Inductance (1kHz)
LE
0.6
mH
VC Diameter
51
mm
Winding material
Aluminum

Magnet

Force factor
Bl
9.0
N/A
Motor constant
Bl/√RE
3.99
N/√W
Material
Ferrite

Diaphragm

Effective diameter
171
mm
Effective area
SD
230
cm²
Moving mass
MMS
17
g
Moving mass (without air load)
MMD
14.5
g
Material
Weather protected

Suspensions

Stiffness
KMS
3.68
N/mm
Compliance
CMS
272
µm/N
Equivalent volume to the compliance
VAS
21.5
L
Mechanical resistance
RMS
2.97
N·s/m

Dimensions

Nominal diameter
8
200
mm
Overall diameter
210
mm
Baffle cutout diameter
186
mm
Overall depth
99
mm
Flange thickness
14
mm
Mounting depth
85
mm
Volume occupied by the driver (estimated)
1.1
L
Net weight
3.4
kg
Eighteen Sound 8MB500 8Ω Impedance
Eighteen Sound 8MB500 8Ω SPL
Eighteen Sound 8MB500 8Ω Dimensions

Export this driver to a simulation software:

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