Eighteen Sound 12MB700 16Ω
8Ω
16Ω
Woofer
12″ / 300 mm
Nominal diameter
46 Hz
Resonance
0.25
Q factor
97 dB
Sensitivity
± 4.5 mm
Linear excursion
600 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 96.9
- dB
- Frequency response
- 60 - 5000
- Hz
- Resonance frequency (free air)
- fS
- 46.0
- Hz
- Mechanical quality factor
- QMS
- 7.27
- Electrical quality factor
- QES
- 0.26
- Total quality factor
- QTS
- 0.25
- Maximum linear excursion
- xmax
- 4.5
- mm
- Air volume displaced at xmax
- VD
- 239
- cm³
- Power handling
- P
- 450
- W
- Program power
- Pmax
- 600
- W
- Nominal impedance
- Z
- 16
- Ω
- DC resistance
- RE
- 9.5
- Ω
- Inductance (1kHz)
- LE
- 1.84
- mH
- VC Diameter
- 75
- mm
- Force factor
- Bl
- 22.1
- N/A
- Motor constant
- Bl/√RE
- 7.17
- N/√W
- Effective diameter
- 260
- mm
- Effective area
- SD
- 531
- cm²
- Moving mass
- MMS
- 46
- g
- Moving mass (without air load)
- MMD
- 37.2
- g
- Stiffness
- KMS
- 3.85
- N/mm
- Compliance
- CMS
- 260
- µm/N
- Equivalent volume to the compliance
- VAS
- 100
- L
- Mechanical resistance
- RMS
- 1.83
- N·s/m
- Nominal diameter
- 12
- ″
- 300
- mm
- Overall diameter
- 315
- mm
- Baffle cutout diameter
- 282
- mm
- Overall depth
- 147
- mm
- Flange thickness
- 16
- mm
- Mounting depth
- 131
- mm
- Volume occupied by the driver (estimated)
- 3.4
- L
- Net weight
- 8.3
- kg