HELIX Ci7 W165FM-S3

HELIX COMPOSE. The perfect loudspeaker for every composition.

Born from the ever-increasing demands of modern vehicle technology and HELIX's typical 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 "developed in the car, for the car," combines classic universal loudspeakers 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: Very high efficiency, fantastic sound quality, and enormous dynamics that fit into every vehicle. HELIX COMPOSE – Universal loudspeakers reimagined.

i7 – High-End “Made in Germany”

The HELIX COMPOSE i7 series represents uncompromising high-end for an extravagant sound experience in the car.

With a clear influence from its high-end sister brand BRAX, the i7 loudspeaker series is entirely "made in Germany" and optimized for pure musical enjoyment. The impedances of all speakers are perfectly matched to our HELIX and MATCH amplifiers, guaranteeing maximum performance and power output at all times. Furthermore, we have implemented new mechanical technologies in HELIX COMPOSE, which offer unparalleled practical benefits.

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 increased efficiency and maximum sound pressure level.

UHD (Ultra High Damping) Paper Cone

As is already familiar from our sister brand BRAX, the i7 series, true to our uncompromising high-end philosophy, uses only the highest quality materials, such as the proprietary, hand-molded UHD (Ultra High Damping) paper cone.

This is manufactured using a particularly elaborate process and guarantees an optimal frequency response and the best possible impulse response for unparalleled musical enjoyment.

High-Tech Polymer Composite Basket

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

FlexMount165 – Universal Meets Vehicle-Specific

FlexMount is a mounting system based on specially developed adapter rings, which enables 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 locking, offers reverse polarity protection, and is highly robust both electrically and mechanically.

WireKits – Plug & Play at the Highest Level

Our WireKits make connecting HELIX COMPOSE components to the original wiring harness or, if necessary, connecting the speaker to the crossover easy.

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

• 165 mm high-end mid-bass driver, which combines unique sound characteristics with versatile integration options
• High efficiency and 3-ohm technology for maximized amplifier power output
• Ultra High Damping paper cone for excellent impulse response and unsurpassed frequency response
• Glass bead reinforced high-tech polymer composite basket for maximum rigidity and minimal resonances
• Specially shaped rubber surround for large linear cone excursion
• Polyurethane dome (dustcap) to optimize the frequency response in the upper midrange
• Large 37 mm voice coil for minimal thermal compression and high power handling
• Automotive-standard ProConnect terminal The use of conventional speaker cables or a quick, locked, and reverse polarity protected connection with the optionally available WireKits
• High-performance magnetic system for particularly high efficiency and minimal distortion
• Compatible with the optionally available, vehicle-specific FlexMount165 adapter rings, which enable acoustically optimized and professional integration in the vehicle's original mounting position
• Compatible with the optionally available WireKits for a vehicle-specific, reversible connection to the original vehicle wiring harness
• Made in Germany

Technical Data

Power handling RMS / Max.	P	150 / 225 Watts
Impedance	Z	3 Ω
DC Resistance	Re	2.9 Ω
Frequency Range		50 Hz - 3,500 Hz
Resonance Frequency	Fs	60 Hz
Mechanical Quality Factor	Qms	3.00
Electrical quality	Qes	0.68
Overall quality	Qts	0.55
Compliance	Cms	480 µm/N
Equivalent volume	Vas	11.6 L
Force factor	B*I	4.8 Tm
Efficiency	SPL	92 dB @ 2.83V / 1m 88 dB @ 1W / 1m
Membrane area	Sd	131 cm²
Moving mass	Mms	14.8 g
Membrane material		UHD (Ultra High Damping) paper membrane
Mechanical resistance	Rms	1.83 kg/s
Voice coil diameter	ø	37 mm
Voice coil winding width		13.4 mm
Max. linear diaphragm stroke	Xmax	+/- 3.7 mm
outer diameter	ø	165 mm
installation diameter	ø	142 mm
Installation depth		65.8 mm
Features		ProConnect Terminal,

Compatibility

• FlexMount165
• WireKits

Scope of Delivery

2 x Ci7 W165FM-S3
2 x Connection Cables
2 x Mounting Hardware