Oberton 6NM150
Mid-range
6.5″ / 170 mm
Nominal diameter
124 Hz
Resonance
0.38
Q factor
95 dB
Sensitivity
± 2.25 mm
Linear excursion
300 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 94.7
- dB
- Frequency response
- 200 - 5000
- Hz
- Resonance frequency (free air)
- fS
- 124
- Hz
- Mechanical quality factor
- QMS
- 5.96
- Electrical quality factor
- QES
- 0.40
- Total quality factor
- QTS
- 0.38
- Maximum linear excursion
- xmax
- 2.25
- mm
- Air volume displaced at xmax
- VD
- 31
- cm³
- Power handling
- P
- 150
- W
- Program power
- Pmax
- 300
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 6.3
- Ω
- Inductance (1kHz)
- LE
- 0.3
- mH
- VC Diameter
- 44
- mm
- Winding height
- HVC
- 8
- mm
- Winding material
- Aluminium
- Former material
- Kapton
- Flux density
- B
- 1.42
- T
- Force factor
- Bl
- 11.58
- N/A
- Motor constant
- Bl/√RE
- 4.63
- N/√W
- Air gap height
- HAG
- 7
- mm
- Material
- Neodymium
- Effective diameter
- 133
- mm
- Effective area
- SD
- 139
- cm²
- Moving mass
- MMS
- 11.1
- g
- Moving mass (without air load)
- MMD
- 9.8
- g
- Material
- Paper
- Stiffness
- KMS
- 6.76
- N/mm
- Compliance
- CMS
- 148
- µm/N
- Equivalent volume to the compliance
- VAS
- 4
- L
- Mechanical resistance
- RMS
- 1.45
- N·s/m
- Nominal diameter
- 6.5
- ″
- 170
- mm
- Overall diameter
- 185
- mm
- Baffle cutout diameter
- 145
- mm
- Overall depth
- 72
- mm
- Volume occupied by the driver (estimated)
- 0.4
- L
- Net weight
- 1.05
- kg
- Frame material
- Die cast aluminium