HELIX Ci3 T20FM-AL MK2 - 20mm Tweeters
SKU: 71879600508

HELIX Ci3 T20FM-AL MK2 - 20mm Tweeters

Sale price$62.99 Regular price$69.99
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Description

HELIX Ci3 T20FM-AL MK2 - 20mm TweetersHELIX Ci3 T20FM AL MK2 HELIX COMPOSE. The perfect speaker for any composition. Born out of the increasingly demanding challenges of modern automobile technology and the HELIX typical pursuit of intelligent solutions, we made the progressive redesign of proven universal speaker systems our mission. The result: our innovative HELIX COMPOSE platform that, according to the motto "developed inside the vehicle, for the vehicle", combines classic universal

HELIX Ci3 T20FM-AL MK2

HELIX COMPOSE. The perfect speaker for any composition.

Born out of the increasingly demanding challenges of modern automobile technology and the HELIX-typical pursuit of intelligent solutions, we made the progressive redesign of proven universal speaker systems our mission. The result: our innovative HELIX COMPOSE platform that, according to the motto "developed inside the vehicle, for the vehicle", combines classic universal speakers with the advantages of vehicle-specific systems. Innovative materials and the latest technologies paired with smart, practical engineering - the best of both worlds in harmony: high efficiency, fantastic sound quality and enormous dynamics that fit in any vehicle. HELIX COMPOSE - universal speakers evolved.

Price-performance highlight 

Our HELIX COMPOSE i3 series is an absolute price-performance highlight, providing a first-class sound experience thanks to high-quality components and smart engineering. As you already know from our i7 series, our new mechanical technologies with unbeatable practical benefits, are implemented here as well. All speaker impedances are perfectly matched for the combination with our HELIX and MATCH amplifiers, guaranteeing maximum performance at any time.

Natural brilliance and precise detail resolution

The new Ci3 tweeter features an elegant black aluminum dome that strikes the perfect balance between low weight and high rigidity. Combined with the refined, highly efficient neodymium magnet system, it delivers an even more precise, clear, and detailed high-frequency response. The result is natural brilliance with outstanding resolution and impressive dynamics – for an exceptional listening experience.

FlexMount20 – Universal meets car-specific

FlexMount is a mounting system based on specially developed adaptor rings, allowing the installation of COMPOSE FlexMount speakers in an almost infinite number of vehicles. Thus, the universal tweeter effortlessly becomes a vehicle-specific tweeter, that can be easily installed in the original installation position of the vehicle in an acoustically optimized way with the matching FlexMount20 adaptor ring.

WireKits – Plug & Play at its best

Our WireKits realize the connection of HELIX COMPOSE components to the original wiring harness, or optionally to the crossover, in the most comfortable way. With manufacturing according to the high standards of the automotive industry, these arrestable adaptor cables meet all requirements for the harsh environmental conditions that installers are facing in vehicles every day.

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
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 71879600508

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Ivan Guillermo Ramirez Hernandex
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★★★★★ 4
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Reviewed in the United States on May 29, 2026
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Sarah Jo Finds
Whiting, US
★★★★★ 5
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Fit Type: 9" Inseam, Size: Large, Color: Deep Navy
as advertised
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Marc
San Leandro, US
★★★★★ 5
Good fit and value
Fit Type: 5" Inseam, Size: X-Large, Color: Gray
I bought these for gym workouts and very pleased with them. They fit well and comfortable during workouts.
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MK
Fort Morgan, US
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So comfy
So comfy!! My boyfriend loves these shorts. I can buy them in all colors & they're an everyday staple.
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1putt1der
Chelsea, US
★★★★★ 4
Good shorts one missing feature.
These shorts are fantastic with one minor gripe. I wish there was a zippered pocket. So that you could secure any sort of small valuable. Other than that it’s a great pair of gym shorts with that one missing detail that would give it a 5 star rating.
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Reviewed in the United States on March 24, 2026

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