Eighteen Sound 12MB1000
Mid Bass
12″ / 315 mm
Nominal diameter
54 Hz
Resonance
0.18
Q factor
98 dB
Sensitivity
± 2.5 mm
Linear excursion
800 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 97.9
- dB
- Frequency response
- 80 - 3500
- Hz
- Resonance frequency (free air)
- fS
- 54.0
- Hz
- Mechanical quality factor
- QMS
- 6.00
- Electrical quality factor
- QES
- 0.20
- Total quality factor
- QTS
- 0.18
- Maximum linear excursion
- xmax
- 2.5
- mm
- Air volume displaced at xmax
- VD
- 133
- cm³
- Power handling
- P
- 600
- W
- Program power
- Pmax
- 800
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.8
- Ω
- Inductance (1kHz)
- LE
- 1.46
- mH
- VC Diameter
- 100
- mm
- Force factor
- Bl
- 23.5
- N/A
- Motor constant
- Bl/√RE
- 9.76
- N/√W
- Effective diameter
- 260
- mm
- Effective area
- SD
- 531
- cm²
- Moving mass
- MMS
- 55.5
- g
- Moving mass (without air load)
- MMD
- 46.7
- g
- Stiffness
- KMS
- 6.37
- N/mm
- Compliance
- CMS
- 157
- µm/N
- Equivalent volume to the compliance
- VAS
- 60
- L
- Mechanical resistance
- RMS
- 3.14
- N·s/m
- Nominal diameter
- 12
- ″
- 315
- mm
- Overall diameter
- 315
- mm
- Baffle cutout diameter
- 282
- mm
- Overall depth
- 118
- mm
- Flange thickness
- 16
- mm
- Mounting depth
- 102
- mm
- Volume occupied by the driver (estimated)
- 3.2
- L
- Net weight
- 9.6
- kg