Eighteen Sound 6NMB420
8Ω
16ΩMid Bass
6.5″ / 152 mm
Nominal diameter
110 Hz
Resonance
0.33
Q factor
96 dB
Sensitivity
± 3 mm
Linear excursion
260 W
Program Power
- Amazon.com
- $$$
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 95.8
- dB
- Frequency response
- 200 - 7000
- Hz
- Resonance frequency (free air)
- fS
- 110
- Hz
- Mechanical quality factor
- QMS
- 2.70
- Electrical quality factor
- QES
- 0.38
- Total quality factor
- QTS
- 0.33
- Maximum linear excursion
- xmax
- 3.0
- mm
- Air volume displaced at xmax
- VD
- 39
- cm³
- Power handling
- P
- 200
- W
- Program power
- Pmax
- 260
- W
- Nominal impedance
- Z
- 8
- Ω
- DC resistance
- RE
- 5.3
- Ω
- Inductance (1kHz)
- LE
- 0.1
- mH
- VC Diameter
- 44
- mm
- Winding material
- Aluminum
- Force factor
- Bl
- 9.0
- N/A
- Motor constant
- Bl/√RE
- 3.91
- N/√W
- Material
- Neodymium
- Effective diameter
- 129
- mm
- Effective area
- SD
- 130
- cm²
- Moving mass
- MMS
- 8.5
- g
- Moving mass (without air load)
- MMD
- 7.4
- g
- Material
- Weather protected
- Stiffness
- KMS
- 4.07
- N/mm
- Compliance
- CMS
- 246
- µm/N
- Equivalent volume to the compliance
- VAS
- 6.1
- L
- Mechanical resistance
- RMS
- 2.18
- N·s/m
- Nominal diameter
- 6.5
- ″
- 152
- mm
- Overall diameter
- 162
- mm
- Baffle cutout diameter
- 148
- mm
- Overall depth
- 73
- mm
- Flange thickness
- 11
- mm
- Mounting depth
- 62
- mm
- Volume occupied by the driver (estimated)
- 0.41
- L
- Net weight
- 1.25
- kg