Eighteen Sound 12MB650
Subwoofer
12″ / 300 mm
Nominal diameter
48 Hz
Resonance
0.23
Q factor
98 dB
Sensitivity
± 5.5 mm
Linear excursion
800 W
Program Power
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- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 97.5
- dB
- Frequency response
- 45 - 5000
- Hz
- Resonance frequency (free air)
- fS
- 48.0
- Hz
- Mechanical quality factor
- QMS
- 3.20
- Electrical quality factor
- QES
- 0.24
- Total quality factor
- QTS
- 0.23
- Maximum linear excursion
- xmax
- 5.5
- mm
- Air volume displaced at xmax
- VD
- 292
- cm³
- Power handling
- P
- 400
- W
- Program power
- Pmax
- 800
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.0
- Ω
- Inductance (1kHz)
- LE
- 0.83
- mH
- VC Diameter
- 65
- mm
- Winding material
- Aluminum
- Force factor
- Bl
- 19.0
- N/A
- Motor constant
- Bl/√RE
- 7.76
- N/√W
- Material
- Ferrite
- Effective diameter
- 260
- mm
- Effective area
- SD
- 531
- cm²
- Moving mass
- MMS
- 48
- g
- Moving mass (without air load)
- MMD
- 39.4
- g
- Material
- Weather protected
- Stiffness
- KMS
- 4.37
- N/mm
- Compliance
- CMS
- 229
- µm/N
- Equivalent volume to the compliance
- VAS
- 90
- L
- Mechanical resistance
- RMS
- 4.52
- N·s/m
- Nominal diameter
- 12
- ″
- 300
- mm
- Overall diameter
- 310
- mm
- Baffle cutout diameter
- 280
- mm
- Overall depth
- 143
- mm
- Flange thickness
- 14
- mm
- Mounting depth
- 129
- mm
- Volume occupied by the driver (estimated)
- 2.9
- L
- Net weight
- 6.8
- 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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