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HELIX Ci3 C165.2FM-S3 MK2 165mm coaxial loudspeaker

HELIX COMPOSE. The perfect speaker for every composition


Born out of the increasingly demanding challenges of modern vehicle technology and the HELIX-typical quest for intelligent solutions, we made the progressive redesign of proven universal loudspeaker systems our mission. The result: the innovative HELIX COMPOSE platform, which combines classic universal loudspeakers with the advantages of vehicle-specific systems according to the guiding principle "developed in the car, for the car"

Innovative materials and the latest technologies paired with smart, practical engineering - the best of both worlds in harmony: very high efficiency, fantastic sound quality and enormous dynamics that fit into any vehicle. HELIX COMPOSE - universal loudspeakers taken to the next level

Performance highlight


The i3 coaxial systems offer everything you could wish for from a 2-way system: a first-class sound experience which, thanks to high-quality materials and particularly smart engineering, finds its way into the car very easily and conveniently. All components are ideally matched to each other and also form the perfect team with our HELIX and MATCH amplifiers, guaranteeing maximum performance and power output at all times

In addition, our new mechanical technologies have been implemented with a clear focus on safety during connection and operation, creating ideal conditions for integration into the vehicle with maximum compatibility

Maximum efficiency


HELIX COMPOSE stands for smart engineering and is therefore based on the highly efficient 3 Ohm technology, which harmonises perfectly with all HELIX and MATCH amplifiers and at the same time enables a clearly noticeable increase in efficiency and maximum sound pressure

Cenosphere paper cone


With the innovative "Cenosphere" coating, hollow microspheres are embedded in a polymer layer and applied to the membrane. This process increases rigidity and also optimises internal damping. The result is an exceptionally stable yet lightweight cone that offers outstanding precision in sound reproduction

High-tech polymer composite basket


The speaker basket of the Ci5 M80FM-S3 is made from a high-tech polymer composite material, which is additionally reinforced with glass spheres. The result: maximum stability with minimum natural resonance, whereby flux modulation of the magnet system is also excluded and there is also maximum resistance to thermal influences. Finally, the cage dimensions are much more compact, which simplifies installation in confined spaces

Natural brilliance and precise detail resolution


The 20 mm tweeter comes with an elegant aluminium dome tweeter with a black finish, which impresses with its perfect balance of low weight and high rigidity. In combination with the revised, particularly efficient neodymium magnet system, the result is even more precise, clearer and more detailed tweeter reproduction. The result is a natural brilliance with the finest resolution and impressive dynamics - for a listening experience at the highest level

FlexMount165 - Universal meets vehicle-specific


FlexMount is a mounting system based on specially developed adapter rings that allows COMPOSE FlexMount speakers to be installed in an almost infinite number of vehicles. This turns the universal loudspeaker into a vehicle-specific loudspeaker in no time at all, which can be installed easily and acoustically optimised in the original installation position of any vehicle using the matching FlexMount ring

Features
  • 2-way performance coaxial loudspeaker system that combines unique sound characteristics with the most versatile integration options
  • High efficiency and 3 Ohm technology for maximised power output from the amplifier
  • ProConnect connection terminal according to automotive standard enables the use of conventional speaker cables or a fast, locked and reverse polarity protected connection with the optionally available WireKits
  • Tweeter
    • 20 mm performance tweeter with black aluminium dome for precise, clear and detailed high-frequency reproduction
    • High-quality aluminium dome tweeter with a perfect balance of low weight and high rigidity - for natural brilliance and the finest detail resolution
    • Refined, highly efficient neodymium magnet for optimised magnetic flux and increased performance
  • Bass-midrange driver
    • 165 mm bass-midrange driver with unique cenosphere-coated paper cone for precise and detailed sound reproduction
    • High-tech polymer composite basket reinforced with glass beads for maximum rigidity and minimal resonance
    • Powerful magnet system for high efficiency and optimum impulse behaviour
  • Crossover
    • Integrated with 6 dB slope
  • Compatible with the optionally available, vehicle-specific FlexMount165 adapter rings, which enable acoustically optimised and professional integration in the original installation positions of the vehicle
  • Compatible with the optionally available WireKits for a vehicle-specific, retrofittable connection to the original vehicle wiring harness
Technical data
Load capacity RMS / Max p 100 / 150 watts
Frequency range 60 Hz - 25,000 Hz
Impedance Z 3 Ω
Efficiency SPL 92 dB @ 2.83V / 1m
88 dB @ 1W / 1m
Outer diameter ø 165.0 mm
Installation diameter ø 142.0 mm
Installation depth 60.7 mm
Bass-midrange driver
Impedance Z 3 Ω
DC resistance Re 3,1 Ω
Resonant frequency Fs 72 Hz
Mechanical quality Qms 4,02
Electrical quality Qes 1,04
Overall quality qts 0,82
compliance Cms 466 μm/N
Equivalent volume Vas 11,5 L
Force factor B*l 3.8 Tm
Diaphragm area Sd 133 cm2
Moving mass Mms 10,4 g
Mechanical resistance Rms 1.17 kg/s
Voice coil diameter ø 25 mm

Voice coil winding width

10.5 mm
Max. linear diaphragm stroke Xmax +/- 3.2 mm
Tweeter
Voice coil diameter ø 20 mm
Features
Tweeter Aluminium dome tweeter and neodymium magnet
Bass-midrange driver

Paper with Cenosphere coating, ProConnect connection terminal and FlexMount165

Crossover Integrated, 6 dB high-pass

Scope of delivery
  • 2x Ci3 C165.2FM-S3 MK2
  • 1x mounting material
Compatibility
  • FlexMount165
  • 1x mounting material

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