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Helix

Helix Ci3 T20FM-AL MK2 - Compose Series 0.75" Dome Tweeter

Helix Ci3 T20FM-AL MK2 - Compose Series 0.75" Dome Tweeter

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Product Description

Features

  • 0.75” / 20 mm performance tweeter with black aluminum dome for accurate, pure and detailed treble response

  • High-quality aluminum dome with perfect balance of low weight and high rigidity – for natural brilliance and fine detail reproduction

  • Refined highly efficient neodymium magnet for high magnetic flux linearity and optimized performance

  • Compact design and various mounting options for numerous installation demands

  • Mounting pods for flush mount and angle mount included in delivery

  • Designed for the optionally available car-specific FlexMount20 adaptors which allow an acoustically optimized and professional integration in the original mounting location of the vehicle

  • Designed for optionally available, car-specific WireKits which allow a non-destructive integration

Technical data

  • Impedance - Z - 4 Ω

  • DC resistance - Re - 3.2 Ω

  • Frequency response - 2,000 Hz - 25,000 Hz

  • Resonance frequency - Fs - 1800 Hz

  • Sensitivity - SPL - 91 dB @ 2.83V / 1m - 88 dB @ 1W / 1m

  • Voice coil diameter - Ø - 20 mm

  • Cone material - Aluminum

  • Outer diameter - 32 mm / 1.26"

  • Installation diameter - 28 mm / 1.10"

  • Installation depth - 9.8 mm / 0.39"

Recommended crossover frequencies for the highpass 

  • Slope - Minimum crossover frequency

  • 6 dB/Octave > 5,000 Hz

  • 12 dB/Octave > 3,500 Hz

  • 24 dB/Octave > 3,000 Hz

Compatibility

  • FlexMount20

  • WireKits

Scope of delivery

  • 2 x Ci3 T20FM-AL MK2

  • 2 x Tweeter flush mount

  • 2 x Tweeter pod

  • 2 x Mounting material