HELIX Ci3 K165.2FM-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 Speaker Kits offer everything you could want from a 2-way system: a first-class sound experience that, thanks to high-quality materials and exceptionally smart engineering, is very easy and convenient to install in your car. 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.

Individual models will also be available as an optional 2-ohm version, which, in conjunction with suitable amplifiers, will extract the absolute maximum performance and power from the respective speaker component.

Cenosphere Paper Cone

With the innovative "Cenosphere" coating, micro hollow spheres are embedded in a polymer layer and applied to the diaphragm. This process increases rigidity and also optimizes its internal damping. The result is an exceptionally stable yet lightweight diaphragm that offers 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 has been additionally reinforced with glass spheres. 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, this results in even more precise, clear, and detailed high-frequency reproduction. The result is natural brilliance with the finest resolution and impressive dynamics – for a listening experience of the highest caliber.

Perfectly Separated

The crossover is designed for optimal use with our HELIX Compose i3 components, and thus for the professional, vehicle-integrated sound typical of COMPOSE.

It offers a 6-step tweeter level adjustment with a 12 dB slope for optimal adaptation to the installation position, as well as integrated tweeter protection. Furthermore, no effort was spared in the complex tuning of the crossover for the best possible frequency band distribution and a harmonious sound. Thanks to its compact dimensions, the Ci3 FX-UNI.2 is perfectly suited for installation in space-saving installations and is compatible with our COMPOSE Connect and WireKit technologies for maximum operational reliability and minimization of installation errors. COMPOSE Connect: Say goodbye to tinkering and soldering. Compose Connect is the ingenious plug-in connection that significantly simplifies car audio installation in conjunction with HELIX COMPOSE components. Thanks to proprietary plastic housings into which standard flat plugs and sockets can be snapped, a reverse polarity-protected and absolutely reliable connection according to automotive standards is ensured.

FlexMount20 & 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. In no time at all, the universal speaker becomes a vehicle-specific speaker, which, with the appropriate FlexMount ring, can be easily and acoustically optimized for installation in the original mounting position of any vehicle.

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 speaker kit, which combines unique sound characteristics with versatile integration options
• High efficiency and 3-ohm technology for maximized amplifier power output
• Ingenious automotive-grade connectors for a secure, reverse-polarity connection – COMPOSE Connect & ProConnect
• 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 increased performance
  • Compact design and various mounting options for diverse installation requirements
  • Enclosure for flush and angled mounting included
• 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 Magnetic system for high efficiency and optimal impulse response
  • Polyurethane dome (dustcap) for optimizing the frequency response in the upper midrange
• Crossover
  • High-quality, separate crossover with compact dimensions for easy installation
  • 6-stage tweeter level adjustment with integrated tweeter protection for optimal adaptation to the installation position
  • Extensively tuned – with a 12 dB slope for the tweeter
  • Compatible with the optionally available WireKits for a vehicle-specific, reversible connection to the original vehicle wiring harness
• Compatible with the optionally available, vehicle-specific FlexMount165 & FlexMount20 adapter rings, which enable acoustically optimized and professional integration into the vehicle's original mounting positions

Technical Data

Power handling 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	Tweeter: 32.0 mm Mid-woofer: 165.0 mm
Mounting Diameter	ø	Tweeter: 32.0 mm Mid-woofer: 142.0 mm
Mounting Depth	Tweeter: 9.8 mm Mid-woofer: 60.7 mm
Crossover dimensions	103.3 x 50.4 x 25.0 mm
Mid-woofer
Impedance	Z	3 Ω
DC resistance	Re	3.0 Ω
Resonance frequency	Fs	70 Hz
Mechanical quality	Qms	4.17
Electrical quality	Qes	1.05
Overall quality	Qts	0.84
Compliance	Cms	454 μm/N
Equivalent Volume	Vas	11.2 L
Force Factor	B*l	4.0 Tm
Membrane Area	Sd	133 cm²
Moving Mass	Mms	11.3 g
Mechanical Resistance	Rms	1.18 kg/s
Voice coil diameter	ø	25 mm
Voice coil winding width		10.5 mm
Max. linear membrane stroke	Xmax	+/- 3.2 mm
Tweeter
Impedance	Z	4 Ω
Resonance frequency	Fs	1800 Hz
Voice coil diameter	ø	20 mm
Features
Tweeter	Extremely compact, aluminum dome, neodymium magnet and FlexMount20
Mid-woofer	Paper with Cenosphere coating, ProConnect connection terminal and FlexMount165
Crossover	Tweeter: 12 dB high-pass, tweeter protection and level adjustment Mid-woofer: 6 dB low-pass

Compatibility

• FlexMount20
• FlexMount165
• FlexConnect WireKits

Scope of Delivery

2 x Ci3 T20FM-AL MK2 Tweeters
2 x Ci3 W165FM-S3 Mid-Woofers
2 x Ci3 FX-UNI.2 Crossovers
2 x Ci3 FX-WLP.2 Low-Pass Crossover Cables
2 x Tweeter Mounting Accessories
2 x COMPOSE Connect Kits
1 x Mounting Hardware