HELIX PURE P 6B
Mid Bass
6.5″ / 165 mm
Nominal diameter
56 Hz
Resonance
0.49
Q factor
88 dB
Sensitivity
± 3 mm
Linear excursion
200 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 88.0
- dB
- Frequency response
- 40 - 4000
- Hz
- Resonance frequency (free air)
- fS
- 56.0
- Hz
- Mechanical quality factor
- QMS
- 5.48
- Electrical quality factor
- QES
- 0.54
- Total quality factor
- QTS
- 0.49
- Maximum linear excursion
- xmax
- 3.0
- mm
- Air volume displaced at xmax
- VD
- 39
- cm³
- Power handling
- P
- 100
- W
- Program power
- Pmax
- 200
- W
- Nominal impedance
- Z
- 4
- Ω
- DC resistance
- RE
- 3.5
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.24
- mH
- VC Diameter
- 25
- mm
- Winding height
- HVC
- 12
- mm
- Force factor
- Bl
- 5.7
- N/A
- Motor constant
- Bl/√RE
- 3.05
- N/√W
- Effective diameter
- 128
- mm
- Effective area
- SD
- 129
- cm²
- Moving mass
- MMS
- 14.3
- g
- Moving mass (without air load)
- MMD
- 13.2
- g
- Stiffness
- KMS
- 1.75
- N/mm
- Compliance
- CMS
- 571
- µm/N
- Equivalent volume to the compliance
- VAS
- 13.2
- L
- Mechanical resistance
- RMS
- 0.91
- N·s/m
- Nominal diameter
- 6.5
- ″
- 165
- mm
- Overall diameter
- 166
- mm
- Baffle cutout diameter
- 142
- mm
- Mounting depth
- 67
- mm
- Volume occupied by the driver (estimated)
- 0.51
- L