Eighteen Sound 8MB400
Woofer
8″ / 200 mm
Nominal diameter
64 Hz
Resonance
0.38
Q factor
93 dB
Sensitivity
± 5.8 mm
Linear excursion
400 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 93.1
- dB
- Frequency response
- 55 - 5200
- Hz
- Resonance frequency (free air)
- fS
- 64.0
- Hz
- Mechanical quality factor
- QMS
- 3.23
- Electrical quality factor
- QES
- 0.43
- Total quality factor
- QTS
- 0.38
- Maximum linear excursion
- xmax
- 5.8
- mm
- Air volume displaced at xmax
- VD
- 132
- cm³
- Power handling
- P
- 280
- W
- Program power
- Pmax
- 400
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.0
- Ω
- Inductance (1kHz)
- LE
- 0.96
- mH
- VC Diameter
- 50
- mm
- Winding material
- Aluminum
- Force factor
- Bl
- 9.3
- N/A
- Motor constant
- Bl/√RE
- 4.16
- N/√W
- Material
- Ferrite
- Effective diameter
- 170
- mm
- Effective area
- SD
- 227
- cm²
- Moving mass
- MMS
- 18
- g
- Moving mass (without air load)
- MMD
- 15.5
- g
- Material
- Weather protected
- Stiffness
- KMS
- 2.91
- N/mm
- Compliance
- CMS
- 344
- µm/N
- Equivalent volume to the compliance
- VAS
- 23.9
- L
- Mechanical resistance
- RMS
- 2.24
- N·s/m
- 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)
- 1.2
- L
- Net weight
- 3.6
- kg
Thiele & Small parameters
Large signal parameters
Voice Coil
Magnet
Diaphragm
Suspensions
Dimensions
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Export this driver to a simulation software:
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
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