HELIX COMPOSE CB C87.2-S3
2 way
3.5″ / 87 mm
Nominal diameter
92 Hz
Resonance
0.62
Q factor
84 dB
Sensitivity
± 2.2 mm
Linear excursion
60 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 83.9
- dB
- Frequency response
- 110 - 22000
- Hz
- Resonance frequency (free air)
- fS
- 92.0
- Hz
- Mechanical quality factor
- QMS
- 3.80
- Electrical quality factor
- QES
- 0.74
- Total quality factor
- QTS
- 0.62
- Maximum linear excursion
- xmax
- 2.2
- mm
- Air volume displaced at xmax
- VD
- 7.9
- cm³
- Power handling
- P
- 40
- W
- Program power
- Pmax
- 60
- W
- Nominal impedance
- Z
- 3
- Ω
- DC resistance
- RE
- 3.0
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.09
- mH
- VC Diameter
- 25
- mm
- Winding height
- HVC
- 8.3
- mm
- Force factor
- Bl
- 2.9
- N/A
- Motor constant
- Bl/√RE
- 1.67
- N/√W
- Effective diameter
- 68
- mm
- Effective area
- SD
- 36
- cm²
- Moving mass
- MMS
- 3.6
- g
- Moving mass (without air load)
- MMD
- 3.4
- g
- Stiffness
- KMS
- 1.22
- N/mm
- Compliance
- CMS
- 820
- µm/N
- Equivalent volume to the compliance
- VAS
- 1.5
- L
- Mechanical resistance
- RMS
- 0.52
- N·s/m
- Nominal diameter
- 3.5
- ″
- 87
- mm
- Overall diameter
- 87
- mm
- Baffle cutout diameter
- 79
- mm
- Mounting depth
- 42
- mm