HELIX Ci3 C165.2FM-S3 MK2

HELIX COMPOSE. The perfect loudspeaker for every composition.

Born from the ever-increasing demands of modern vehicle technology and HELIX's signature pursuit of intelligent solutions, we made the advanced redesign of proven universal loudspeaker systems our mission. The result: the innovative HELIX COMPOSE platform, which, following the principle "designed in the car, for the car," combines classic universal loudspeakers with the advantages of vehicle-specific systems.

Innovative materials and cutting-edge 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 loudspeaker reimagined.

Performance Highlight

The i3 coaxial systems offer everything you could want from a 2-way system: A first-class sound experience that, thanks to high-quality materials and particularly smart engineering, finds its way into the car very easily and conveniently. All components are ideally matched and, together with our HELIX and MATCH amplifiers, form the perfect team, guaranteeing maximum performance and power output at all times. Furthermore, our new mechanical technologies, with a clear focus on safety during connection and operation, have been implemented, creating ideal conditions for integration into the vehicle with maximum compatibility. Maximum Efficiency HELIX COMPOSE stands for smart engineering and is therefore based on highly efficient 3-ohm technology, which harmonizes perfectly with all HELIX and MATCH amplifiers and simultaneously enables a noticeably improved efficiency and maximum sound pressure level. Cenosphere Paper Cone In the innovative "Cenosphere" coating, micro-hollow spheres are embedded in a polymer layer and applied to the diaphragm. This process increases stiffness and also optimizes its internal damping. This results in an exceptionally stable yet lightweight diaphragm, offering outstanding precision in sound reproduction.

High-Tech Polymer Composite Basket

All HELIX COMPOSE i7 and i3 speaker baskets are made of a high-tech polymer composite material, which is further reinforced with glass beads. The result: maximum stability with minimal resonances, while also eliminating flux modulation of the magnet system and providing maximum resistance to thermal influences. Finally, this allows for significantly more compact basket dimensions and thus simplified installation in confined spaces.

Natural Brilliance and Precise Detail Resolution

The 20 mm tweeter features an elegant aluminum dome with a black finish, which impresses with its perfect balance of low weight and high rigidity.

In combination with the redesigned, highly efficient neodymium magnet system, even more precise, clear, and detailed high-frequency reproduction is achieved. The result is natural brilliance with the finest resolution and impressive dynamics – for a listening experience of the highest caliber.

FlexMount165 – Universal meets vehicle-specific

FlexMount is a mounting system based on specially developed adapter rings, which allows the installation of COMPOSE FlexMount speakers in a virtually unlimited number of vehicles. This transforms the universal speaker into a vehicle-specific speaker in no time, which can be easily and acoustically optimized for installation in the original mounting position of any vehicle using the appropriate FlexMount Ring.

ProConnect – The New Industry Standard

Our innovative ProConnect terminal reflects the new industry standard: It is a professional, automotive connector that allows the safe use of conventional speaker cables, but is also ideally suited for connection via flat connectors with our WireKits, thus offering maximum flexibility when designing your sound system upgrade. Furthermore, the connector is locked, offers reverse polarity protection, and is highly robust both electrically and mechanically.

WireKits – Plug & Play at the Highest Level

Our WireKits make connecting the HELIX COMPOSE speaker system to the original wiring harness effortless.

Manufactured to the high standards of the automotive industry, these lockable adapter cables meet all the requirements for the harsh environmental conditions in vehicles.

Features

• 2-way performance coaxial speaker system that combines unique sound characteristics with versatile integration options
• High efficiency and 3-ohm technology for maximized amplifier power output
• Automotive-standard ProConnect connection terminal allows the use of conventional speaker cables or a quick, locked, and reverse-polarity protected connection with the optionally available WireKits
• Tweeter
  • 20 mm performance tweeter with black aluminum dome for precise, clear, and detailed high-frequency reproduction
  • High-quality aluminum dome with a perfect balance of low weight and high rigidity – for natural brilliance and the finest detail resolution
  • Refined, highly efficient neodymium magnet for optimized magnetic flux and Enhanced Performance
• Mid-bass driver
  • 165 mm mid-bass driver with unique Cenosphere-coated paper cone for precise and detailed sound reproduction
  • Glass bead reinforced high-tech polymer composite basket for maximum rigidity and minimal resonances
  • Powerful magnet system for high efficiency and optimal impulse response
• Crossover
  • Integrated with 6 dB slope
• Compatible with the optional, vehicle-specific FlexMount165 adapter rings, which allow for acoustically optimized and professional integration in the vehicle's original mounting positions
• Compatible with the optional WireKits for a vehicle-specific, reversible 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 88dB @ 1W / 1m
Outer diameter	ø	165.0 mm
Mounting diameter	ø	142.0 mm
Mounting depth	60.7 mm
Mid-bass driver
Impedance	Z	3 Ω
DC resistance	Re	3.1 Ω
Resonance 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
Membrane 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 excursion	Xmax	+/- 3.2 mm
Tweeter
Voice coil diameter	ø	20 mm
Features
Tweeter	Aluminum dome and neodymium magnet
Mid-woofer	Paper with Cenosphere coating, ProConnect connection terminal and FlexMount165
Crossover	Integrated, 6 dB high-pass

Compatibility

• FlexMount165
• WireKits

Scope of delivery

2 x Ci3 C165.2FM-S3 MK2
1 x Mounting material