HELIX COMPOSE Ci7 M100FM-S3
Mid-range
4″ / 100 mm
Nominal diameter
85 Hz
Resonance
0.47
Q factor
87 dB
Sensitivity
± 1.3 mm
Linear excursion
150 W
Program Power
- Sensitivity (1W, 1m, infinite baffle)
- SPL1W
- 86.6
- dB
- Frequency response
- 110 - 7000
- Hz
- Resonance frequency (free air)
- fS
- 85.0
- Hz
- Mechanical quality factor
- QMS
- 4.58
- Electrical quality factor
- QES
- 0.52
- Total quality factor
- QTS
- 0.47
- Maximum linear excursion
- xmax
- 1.3
- mm
- Air volume displaced at xmax
- VD
- 7.2
- cm³
- Power handling
- P
- 100
- W
- Program power
- Pmax
- 150
- W
- Nominal impedance
- Z
- 3
- Ω
- DC resistance
- RE
- 3.0
- Ω
- Inductance (1kHz, estimated)
- LE
- 0.12
- mH
- VC Diameter
- 25
- mm
- Winding height
- HVC
- 5.5
- mm
- Force factor
- Bl
- 4.3
- N/A
- Motor constant
- Bl/√RE
- 2.48
- N/√W
- Effective diameter
- 84
- mm
- Effective area
- SD
- 55
- cm²
- Moving mass
- MMS
- 5.9
- g
- Moving mass (without air load)
- MMD
- 5.6
- g
- Stiffness
- KMS
- 1.7
- N/mm
- Compliance
- CMS
- 590
- µm/N
- Equivalent volume to the compliance
- VAS
- 2.5
- L
- Mechanical resistance
- RMS
- 0.69
- N·s/m
- Nominal diameter
- 4
- ″
- 100
- mm
- Overall diameter
- 98
- mm
- Baffle cutout diameter
- 89
- mm
- Mounting depth
- 27
- mm
- Volume occupied by the driver (estimated)
- 0.13
- L