Oberton 18FBR700
Woofer
18″ / 461 mm
Nominal diameter
36 Hz
Resonance
0.27
Q factor
97 dB
Sensitivity
± 8 mm
Linear excursion
1400 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 96.9
- dB
- Frequency response
- 40 - 2000
- Hz
- Resonance frequency (free air)
- fS
- 35.6
- Hz
- Mechanical quality factor
- QMS
- 12.63
- Electrical quality factor
- QES
- 0.28
- Total quality factor
- QTS
- 0.27
- Maximum linear excursion
- xmax
- 8.0
- mm
- Air volume displaced at xmax
- VD
- 888
- cm³
- Power handling
- P
- 700
- W
- Program power
- Pmax
- 1400
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.3
- Ω
- Inductance (1kHz)
- LE
- 1.5
- mH
- VC Diameter
- 100
- mm
- Winding height
- HVC
- 23
- mm
- Winding material
- Aluminium
- Former material
- Glass fiber
- Flux density
- B
- 1.03
- T
- Force factor
- Bl
- 25.17
- N/A
- Motor constant
- Bl/√RE
- 11.0
- N/√W
- Air gap height
- HAG
- 14
- mm
- Material
- Ferrite
- Effective diameter
- 376
- mm
- Effective area
- SD
- 1110
- cm²
- Moving mass
- MMS
- 149.1
- g
- Moving mass (without air load)
- MMD
- 122.4
- g
- Material
- Paper with carbone fibers
- Stiffness
- KMS
- 7.46
- N/mm
- Compliance
- CMS
- 134
- µm/N
- Equivalent volume to the compliance
- VAS
- 231
- L
- Mechanical resistance
- RMS
- 2.64
- N·s/m
- Nominal diameter
- 18
- ″
- 461
- mm
- Overall diameter
- 461
- mm
- Baffle cutout diameter
- 417
- mm
- Overall depth
- 205
- mm
- Volume occupied by the driver (estimated)
- 7.0
- L
- Net weight
- 12.9
- kg
- Frame material
- Die cast aluminium