SKU: 69257083379

Helix Compose Ci3 C100.2FM-S3 MK2 - 4" 3 Ohm Coaxial Speakers

Sale price$157.49 Regular price$174.99
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Description

Helix Compose Ci3 C100.2FM-S3 MK2 - 4" 3 Ohm Coaxial SpeakersHELIX Ci3 C100. 2FM S3 MK2 HELIX COMPOSE. The perfect speaker for any composition. Born out of the increasingly demanding challenges of modern automobile technology and the HELIX typical pursuit of intelligent solutions, we made the progressive redesign of proven universal speaker systems our mission. The result: our innovative HELIX COMPOSE platform that, according to the motto "developed inside the vehicle, for the vehicle", combines classic

HELIX Ci3 C100.2FM-S3 MK2

HELIX COMPOSE. The perfect speaker for any composition.

Born out of the increasingly demanding challenges of modern automobile technology and the HELIX-typical pursuit of intelligent solutions, we made the progressive redesign of proven universal speaker systems our mission. The result: our innovative HELIX COMPOSE platform that, according to the motto "developed inside the vehicle, for the vehicle", combines classic universal speakers 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: high efficiency, fantastic sound quality and enormous dynamics that fit in any vehicle. HELIX COMPOSE – universal speakers evolved.

Performance highlight

The i3 coaxial systems give you everything you would expect from a great 2-way system: A first-class sound experience that, thanks to the use of high-quality materials and its particularly smart engineering, conveniently finds its way into the automobile. All components harmonize perfectly and form an ideal team with our HELIX and MATCH amplifiers, guaranteeing maximum performance and power output at all times. Furthermore, we implemented our new, mechanical technologies with a clear focus on safety during connection and operation for the purpose of creating ideal conditions for the integration into the vehicle with maximum compatibility.

High efficiency

HELIX COMPOSE equals smart engineering and accordingly implements highly efficient 3 Ohm technology, that perfectly harmonizes with all HELIX and MATCH amplifiers and at the same time allows a clearly perceptible plus in efficiency and maximum sound pressure.

Cenosphere paper cone

With the innovative "Cenosphere" coating, hollow spheres are incorporated into a polyamide layer that is applied to the cone. This process increases the stiffness and also optimizes its internal damping. The result is an exceptionally stable yet lightweight cone that offers outstanding precision in sound reproduction.

High-tech polymer basket

All HELIX COMPOSE i7 and i3 speaker baskets are made of a high-tech polymer composite, which has been additionally reinforced with glass spheres. The result: maximum stability with minimal self-resonance, while also eliminating flux modulation of the magnetic system and maximum resistance to thermal influences. Last but not least, this allows for much more compact basket dimensions and thus simplified installations in cramped installation conditions.

Natural brilliance and precise detail resolution

The 0.75” / 20 mm tweeter features an elegant black aluminum dome that strikes the perfect balance between low weight and high rigidity. Combined with the refined, highly efficient neodymium magnet system, it delivers an even more precise, clear, and detailed high-frequency response. The result is natural brilliance with outstanding resolution and impressive dynamics – for an exceptional listening experience.

FlexMount100 – Universal meets car-specific

FlexMount is a mounting system based on specially developed adaptor rings, allowing the installation of COMPOSE FlexMount speakers in an almost infinite number of vehicles. Thus, the universal loudspeaker effortlessly becomes a vehicle-specific loudspeaker, that can be easily installed in the original installation position of the vehicle in an acoustically optimized way with the matching twist-lock FlexMount100 adaptor ring.

lexConnect – One terminal for all cases

With our FlexConnect terminal, HELIX COMPOSE speakers can easily be connected directly to the original wiring harness of the vehicle, maintaining the automotive standard of the plug connection as well as guaranteeing reverse polarity protection. Similar to our FlexMount system, this technology relies on specially developed, vehicle-specific adaptors.

Features

  • 2-way performance coaxial speaker system which combines outstanding sound quality with versatile physical integration options
  • High efficiency and 3 Ohms technology for maximized power output of the amplifier
  • Automotive grade FlexConnect terminal allow fast and secure connection as well as direct connection to the original cable harness due to optionally available car-specific adaptors
  • Tweeter
    • 0.75” / 20 mm performance tweeter with black aluminum dome for accurate, pure and detailed treble response
    • High-quality aluminum dome with perfect balance of low weight and high rigidity – for natural brilliance and fine detail reproduction
    • Refined highly efficient neodymium magnet for high magnetic flux linearity and optimized performance
  • Midrange
    • 4" / 100 mm midrange with unique Cenosphere coated paper cone for precise and detailed sound reproduction
    • High-tech polymer composite basket reinforced with glass beads for enormous rigidity and minimized ringing
    • Shallow neodymium magnet system for low installation depth and high efficiency
  • Crossover
    • Integrated with 6 dB slope
  • Designed for the optionally available car-specific FlexMount100 adaptors which allow an acoustically optimized and professional integration in the original mounting location of the vehicle

Technical data

Power handling RMS / Max.  P 80 / 120 Watts
Frequency response   100 Hz - 25,000 Hz
Impedance Z 3 Ω
Sensitivity  SPL 91 dB @ 2.83V / 1m
87 dB @ 1W / 1m
Outer diameter ø 98.0 mm / 3.86”
Installation diameter ø 89.0 mm / 3.50”
Installation depth    30.0 mm / 1.18”
   
Midrange  
Impedance Z 3 Ω
DC resistance Re 3.0 Ω
Resonance frequency Fs 137 Hz
Mechanical Q factor Qms 4.37
Electrical Q factor Qes 0.78
Total Q factor Qts 0.66
Compliance Cms 456 μm/N
Equivalent air volume Vas 2.1 L
Force factor B*l 3.2 Tm
Cone area Sd 57 cm2
Moving mass Mms 3.0 g
Mechanical resistance Rms 0.58 kg/s
Voice coil diameter  ø 25 mm

Voice coil winding height

  4.8 mm
Max. linear excursion Xmax +/- 2.0 mm
   
Tweeter  
Voice coil diameter ø 20 mm
   
Features  
Tweeter   Aluminum dome and neodymium magnet
Midbass  

Paper with Cenosphere coating, FlexConnect terminal, neodymium magnet and FlexMount100

Crossover   Integrated, 6 dB highpass

Compatibility

  • FlexMount100
  • FlexConnect inlays
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69257083379

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4.4 ★★★★★
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Bobbie
West Palm Beach, US
★★★★★ 1
“Indestructible”? Not even close.
Color: Carrot Orange, Color: Carrot Orange
I bought this because it was advertised for large aggressive chewers and claimed to be indestructible. Unfortunately, that couldn’t be further from the truth. My dog destroyed this toy in about two minutes. Seriously. It took me longer to get it out of the Amazon packaging and the manufacturer’s box than it did for my dog to rip it open. Once he got going, the seams popped and stuffing was everywhere. Then I got the joy of cleaning up the mess, which took longer than the toy lasted. If your dog is actually a strong chewer, this toy probably won’t survive very long. I wish I could recommend it, but honestly it just didn’t hold up at all. Save your money and keep looking
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
R
Verified Purchase
rdb
Chelsea, US
★★★★★ 5
UPDATE TO MY REVIEW / It's NOT indestructible!
Color: Carrot Orange
UPDATE: I stand by my review for the original "Plush Toy". BUT ... the seller contacted me and offered to help, because they don't want their customers to be unhappy with their products. I described the problem, and they said they'd contact their supplier to correct things. AND ... they offered to send another dog toy that actually was indestructible. My dog, a Border Collie - Retriever mix, loved the replacement they sent, an Orange Peanut. (He even took it to bed the first night.) This was much appreciated. But what I most appreciated was their Customer Service and Care. They don't just say they want their customers to be happy, they actually demonstrate it by their actions. This type of care is rare these days, and I commend them for it. Notice I've changed my rating from 1-star to 5-stars, this is in recognition of their Customer Service. To me, this type of care is more important than any product. So I now fully endorse this seller. If you have an issue with a product, just contact them (through Amazon), and they will do their utmost to make things right, and to make sure you're happy. ****************************************** I bought this because it was described as "Dog Plush Toy for Large Aggressive Chewers, Indestructible Dog Squeaky Toy" (from their listing on Amazon). My dog is a Golden Retriever mix, and he's only a "medium size aggressive chewer". And yet, this toy lasted 10 minutes at the most. Very disappointing ... save yourself a "dog toy heartbreak".
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2023
M
Verified Purchase
Mistelle Lanko
Draper, US
★★★★★ 3
Not indestructible however not terrible.
Color: Shocking Pink
Not indestructible however not terrible. My strong chewer had quickly devoured the plush stomach and eaten the squeaker. But the rope parts and rough face pieces are holding up well. Not a disaster.
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Reviewed in the United States on March 19, 2026
C
Verified Purchase
Chris
Lake Worth, US
★★★★★ 4
Good toy but not indestructible
Color: Royal Blue
The toy is nice, but my dog killed it in about 30 minutes. The only reason I didn’t give it five stars is because it says indestructible Toy in the description. Other than that it is a nice chew toy.
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Reviewed in the United States on March 6, 2026
J
Verified Purchase
J. L.
New York, US
★★★★★ 5
Dog loves it. So 5 starts
Color: Carrot Orange
A great value toy that is very hard to destroy. Our dog usually runs through softer toys and this one has lasted a long time. Its not chewable like a plushy but harder fabric that doesn't rip apart. The dogs are having a blast with it. And so are we. The colors fit the description. The size was idk 2ft ish. It met all expectations. I wouldn't expect to need more than one of them unless your dog is a super destroyer.
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Reviewed in the United States on September 27, 2025

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