Description
Helix CI7-T20 FM-SC
“Compose” tweeter set
Features
- Super-wide dispersion 0.75” / 20 mm high-end silk dome tweeter with coupling volume for lowest possible resonance frequency
- Exceptionally lightweight and fine-meshed silk dome ensures brilliant and smooth treble response
- High efficient neodymium magnet for high magnetic flux linearity
- Integrated, dampened coupling volume allows a low crossover frequency thanks to its low resonance frequency
- Sturdy Aluminum housing turned from solid
- Compact design and various mounting options for numerous installation demands
- Mounting pods for flush mount and angle mount included in delivery
- Made in Germany
Technical data
| Impedance | Z | 4 Ω |
| DC resistance | Re | 3.4 Ω |
| Frequency response | 1,500 Hz – 30,000 Hz | |
| Resonance frequency | Fs | 950 Hz |
| Sensitivity | SPL | 91.0 dB @ 2.83V / 1m 88.0 dB @ 1W / 1m |
| Voice coil diameter | Ø | 20 mm |
| Cone material | Silk dome with coupling volume | |
| Outer diameter | 32 mm / 1.26″ | |
| Installation diameter | 27.2 mm / 1.07″ | |
| Installation depth | 19 mm / 0.75″ | |
| Recommended crossover frequencies for the highpass | ||
| Slope | Minimum crossover frequency | |
| 6 dB/Octave | > 4,000 Hz | |
| 12 dB/Octave | > 3,000 Hz | |
| 24 dB/Octave | > 2,500 Hz | |
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