Helix Ci5 T25FM-CA tweeters
More about the product
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Helix Ci5 T25FM-CA Tweeters
From the HELIX COMPOSE platform comes a solution that combines classic universal speakers with the advantages of vehicle-specific systems. The philosophy "developed inside the car, for the car" is reflected here in a combination of innovative materials, modern technologies and smart engineering. The result: maximum efficiency, excellent sound quality and high dynamics — in any vehicle.
i5 Series – the ideal balance
The HELIX COMPOSE i5 series sits precisely between the i7 and i3. It is designed for discerning listeners seeking hi‑fi quality paired with practical usability. The impedance of all speakers is matched to HELIX and MATCH amplifiers to always ensure maximum performance. The exclusive COMPOSE construction technology also adds practical benefits for easy integration.
Clear highs with wide dispersion
The Ci5 T25FM-CA 25 mm tweeter features a specially ceramic‑coated aluminum dome that delivers an exceptionally balanced frequency response and very good damping characteristics. Despite its larger size, it offers excellent dispersion and off‑axis response, providing a realistic and impressive sound image even when installed in OEM positions. A neodymium magnet ensures high linearity of the magnetic flux, and the solid aluminum housing with integrated grille protects the delicate dome. The compact design and supplied mounting bases for flush or angled installation allow easy adaptation to various mounting conditions.
FlexMount25 – easy OEM integration
The FlexMount25 mounting system uses special adapter rings that allow installation of the tweeters into original positions in almost any car. This makes the universal tweeter quickly become a vehicle‑specific solution — with an acoustically optimized result.
WireKits – plug & play connection
WireKits wiring harnesses enable simple and secure connection of HELIX COMPOSE speakers to the factory wiring or an optional crossover. Locking connectors manufactured to strict automotive standards ensure reliability even under demanding operating conditions.
Main features
- 25 mm / 1” tweeter with ceramic‑coated aluminum dome for balanced and clear sound.
- Robust aluminum housing with integrated protective grille.
- Powerful neodymium magnet with linear magnetic flux.
- Compact design with multiple mounting options (flush or angled installation).
- Mounting accessories included.
- Optional FlexMount25 adapters for professional, acoustically optimized OEM integration.
- Optional WireKits wiring harnesses for plug & play installation without modifications.
About the brand
HELIX by Audiotec Fischer is a German brand of high‑end car audio equipment that has ranked among the world leaders in amplifiers and DSP processors for more than 35 years. HELIX is regarded as a leader in digital signal processors, offering some of the most advanced and highest‑quality DSPs in the world, enabling a skilled technician to tune any audio system to perfection and bring an authentic hi‑fi experience into the car. The combination of precise German engineering, state‑of‑the‑art technology and innovative design delivers clear, dynamic and detailed sound that has won the favor of audiophiles worldwide. HELIX products are characterized by high efficiency, reliability and perfect integration into modern vehicles. They are an excellent choice for demanding users who require the best possible sound without compromise. Helix, together with the Brax and Match brands, is part of the German manufacturer Audiotec Fischer.
| Catalog number | CI21002 |
| Brand | Helix |
| Links | Official web presentation |