Helix Compose Ci3 K165.2FM-S2 - 6.5" 2 Ohm Component Set
SKU: 28256170854

Helix Compose Ci3 K165.2FM-S2 - 6.5" 2 Ohm Component Set

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Description

Helix Compose Ci3 K165.2FM-S2 - 6.5" 2 Ohm Component SetHELIX Ci3 K165. 2FM S2 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

HELIX Ci3 K165.2FM-S2

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 component 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. Certain models will also be available as an optional 2 Ohm variants, assuring the absolute maximum performance and power of the respective speaker in combination with the appropriate amplifier.

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.

Stunning Highs and outstanding stability

The 0.75” / 20 mm tweeter is equipped with an innovative titan dome that combines outstanding stability with low moving mass and high inner damping as well as enormous thermal resistance - perfectly made for brilliant and compression-free treble reproduction.

Perfectly separated

Our Ci3 FX-UNI.2 crossover is designed for the ideal use with our HELIX Compose i3 components, and thus for the COMPOSE-typical, professional integration into the vehicle. It offers a 6-stage tweeter level adjustment with 12 dB slope for optimal adaptation to the installation position as well as an integrated tweeter protection. In addition, no effort was spared in the complex tuning of the crossover for the best possible distribution of the frequency band and a harmonious sound image. Thanks to its compact dimensions, the Ci3 FX-UNI.2 is perfectly suited for installation in tight spaces and is furthermore compatible with our COMPOSE Connect and WireKit technologies for a safe and fool-proof connection according to automotive standards.

COMPOSE Connect

Kiss tinkering and soldering goodbye. Compose Connect is the sophisticated plug-in connection that considerably simplifies car audio installation in conjunction with HELIX COMPOSE components. Proprietary plastic housings into which standard flat plugs and couplings can be snapped, establish an absolutely safe connection in accordance with automotive standards that prevents any polarity reversal.

FlexMount20 & FlexMount165 – 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 FlexMount adaptor ring.

WireKits – Plug & Play at its best

Our WireKits realize the connection of HELIX COMPOSE speaker kit to the original wiring harness in the most comfortable way. With manufacturing according to the high standards of the automotive industry, these arrestable adaptor cables meet all requirements for the harsh environmental conditions that installers are facing in vehicles every day.

Features

  • 2-way performance speaker kit which combines outstanding sound quality with versatile physical integration options
  • High efficiency and 2 Ohms technology for maximum power output of the amplifier
  • Smart, automotive grade connectors for fail-safe and secure installation – COMPOSE Connect & ProConnect
  • Tweeter
    • 0.75” / 20 mm tweeter with titanium dome for accurate and dynamic treble response
    • Highly efficient neodymium magnet for high magnetic flux linearity
    • Compact design and various mounting options for numerous installation demands
    • Mounting pods for flush mount and angle mount included in delivery
  • Midbass
    • 6.5" / 165 mm midbass 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
    • Powerful magnet system for high efficiency and optimum impulse response
    • Polyurethane dustcap for optimized frequency response in the upper midrange area
  • Crossover
    • Separate, high-grade crossover with compact dimensions for easy integration
    • 6-stage tweeter level adjustment with integrated tweeter protection for optimized treble adaptation to mounting position
    • Extensively fine-tuned – with 12 dB slope for tweeter
    • Designed for optionally available, car-specific WireKits which allow a non-destructive integration
  • Designed for the optionally available car-specific FlexMount165 & FlexMount20 adaptors which allow an acoustically optimized and professional integration in the original mounting locations of the vehicle

Technical data

Power handling RMS / Max.  P 100 / 150 Watts
Frequency response   60 Hz - 25,000 Hz
Impedance Z 2 Ω
Sensitivity  SPL 94 dB @ 2.83V / 1m
88 dB @ 1W / 1m
Outer diameter ø

Tweeter: 32.0 mm / 1.26”
Midbass: 165.0 mm / 6.50”
Installation diameter ø

Tweeter: 32.0 mm / 1.26”
Midbass: 142.0 mm / 5.59”
Installation depth   

Tweeter: 9.8 mm / 0.39”
Midbass: 60.7 mm / 2.39”
Dimensions crossover  

103.3 x 50.4 x 25.0 mm /
4.07 x 1.98 x 0.98”
   
Midbass 
Impedance Z 2 Ω
DC resistance Re 1.8 Ω
Resonance frequency Fs 74 Hz
Mechanical Q factor Qms 3.92
Electrical Q factor Qes 0.92
Total Q factor Qts 0.74
Compliance Cms 370 μm/N
Equivalent air volume Vas 8.8 L
Force factor B*l 3.4 Tm
Cone area Sd 133 cm2
Moving mass Mms 12.5 g
Mechanical resistance Rms 1.48 kg/s
Voice coil diameter  ø 25 mm

Voice coil winding height

   11.3 mm
Max. linear excursion Xmax +/- 3.7 mm
   
Tweeter  
Impedance Z 4 Ω
Resonance frequency Fs 1800 Hz
Voice coil diameter ø 20 mm
   
Features  
Tweeter  

Ultra compact, titanium dome, neodymium magnet and FlexMount20
Midbass  

Paper with Cenosphere coating, ProConnect terminal and FlexMount165
Crossover  

Tweeter: 12 dB highpass, protection and level adjustment
Midbass: 6 dB lowpass

Compatibility

  • FlexMount20
  • FlexMount165
  • WireKits
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: 28256170854

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4.3 ★★★★★
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Verified Purchase
morey smith
Port Orchard, US
★★★★★ 5
Easy to apply.
Size: 4 Oz
Product did a great job renewing my plastic house shutters. It brought back the deep rich color and made them look better the new.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
S
Verified Purchase
Stuart R. Stengel
Omaha, US
★★★★★ 5
Great Stuff
Size: 120 ML
Product is good, Easy to spread for the most part. The only complaint I would give it is that the applicators do not hole up after several applications, I would suggest using a microfiber cloth to apply.
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Reviewed in the United States on June 1, 2026
T
Teresa Wilson
Charlottesville, US
★★★★★ 5
Restored My Trim Instantly
Size: 120 ML
I used this plastic restorer on the faded trim around my SUV, and the difference was immediate. The dull gray plastic turned back to a rich black color within minutes. It spreads evenly and doesn’t leave greasy streaks behind. After a few weeks and several rainy days, the finish still looks great. My car honestly looks years newer now.
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Reviewed in the United States on May 11, 2026
E
Verified Purchase
Eric J. Jenislawski
Battle Creek, US
★★★★★ 5
Great result, exceptional value, and easy, forgiving application.
Size: TRIM COAT KIT
I am thoroughly pleased with the results of this product, and the application was easier than I expected. Outstanding stuff. I am writing a longer review in case it helps people who are unsure about a "once and done" product that calls itself permanent. It's not hard to apply. It is forgiving and there's time to even it out. But here are some things to anticipate. My use case: I used Cerakote to restore the plastic trim on a used 2014 black Dodge Challenger that had been repainted but the plastic trim was original and it had been kept outside by the prior owner, so the contrast between the new paint and faded trim was noticeable. The trim was originally a deep, dark gray (it is never as black as the paint). It had faded to a medium-gray in many places: running boards on the side beneath the door, below the read bumper (which were also somewhat worn from debris), around the tail lights, and the plastic piece beneath the windshield wipers between the windshield and the hood. These were all looking weathered. The trim was very oxidized in some places, chalky grey near the hood and around the back bumper. The plastic around the tail lights also had light streaks in it from where water drains down from the trunk. What else I tried before I tried Cerakote: I got middling results from Mother's Back to Black. It looked somewhat better for a week or two, and then it went back to looking as before. Not impressed. I got a tip online to try rubbing the plastic trim with a melamine magic eraser, so I did that next, and this made a significant difference. Melamine is abrasive, so be careful if you do this on your trim. I went gently, up-and-down, side-to-side and in small circles, by hand, with gentle pressure like one would with a polishing compound. By removing the oxidation, the plastic was a few shades darker in the worst spots and the streaking on the rear tail light piece was gone. The rough spots on the trim at the bottom of the car and around the wheels looked somewhat better. But it certainly did not "like new." Cerakote experience: I decided to give Cerakote a try based on the video and good reviews. Bam! Back to factory-like deep dark gray. I wish I had taken pictures. It's incredible. Fully satisfied! I had already washed the trim with Dawn dish soap. I started with the trim bone dry. You are warned everywhere that water droplets will ruin the result, so don't expect to do this process right after you wash the car unless you like to live dangerously and have compressed air to spray cracks and crevices. I was worried that application would be streaky if I didn't do it right. Not so. It is forgiving. Here's what I learned. 1) The first 20% of what you'll get out of the packet goes on heavy with the lightest touch. One packet goes a long way. The next 60% is the "normal" application. This goes on the easiest. You can really milk the last drop out of each towelette, but I didn't because the last 20% of what you can get out of it by rubbing it really hard comes out very light and is not worth the uneven application unless you have some random area you don't care much about and want to use the remainder for that. I only used 5 packets to do the whole car. When you start a new packet, the beginning is where you might want to go back later and even it out once the application gets more normal. Or better, start a new packet on a big section to spread it around well and then move to smaller trim when the towelette is less fresh. 2) You've got time to work with it and make corrections. It stayed liquid like water for at least 20 minutes in my conditions: about 80 degrees, not very humid, indirect sunlight on an 80 degree car. Don't apply in direct sun or on a hot car. The product then gets sticky as it cures, but you can still work with it during the sticky time, rubbing it in and spreading it evenly with the towelette. I did not use a microfiber to "knock down" heavy spots. I just came back around with the towelette. I think a dry microfiber might pull off too much product. When it is half-cured, it is sticky and you can buff it with the towelette at this stage to further flatten and even things out. Work in sections, one piece of trim at a time. 3) Overlaps won't show as long as you rub it all in thoroughly. I tried the overlapping parallel passes method that they recommend, and this works pretty well. I was worried that I might get a "double heavy" streak where the passes overlap but this not so unless the towelette is fresh, but this is fixable. You can do a pretty natural, casual back-and-forth motion for the most part and it comes out fine. This is NOT a super-finicky product. I made a second or third back-and-forth pass in a few areas, and used circular motion in some places where the trim was textured or a little rough from wear, and it all looked even in the end. Just rub it down into the plastic and even out the sheen while it is uncured and it's good. 4) It cures like you see it when it's still wet. It doesn't lighten up very much as it cures. It just looks a little less wet. So get it right by eye when it is wet and that's pretty much what you will still have in an hour when it is cured. 5) Don't miss a spot! You'll see it for sure if you do because the different is so dramatic. And a "second coat" is not easy or recommended. This is the only once-and-done part that you want to get right, and you have plenty of cure time to be thorough. 6) Use the folded corner of the towelette to get into small corners and edges, like where the trim meets the paint or has an inside corner or some little nook. A fresh towelette is great for getting into small areas because a feather touch applies plenty of product when the towelette is fresh. The trim now looks amazing and I am entirely satisfied. I will use Cerakote on my other vehicles. The only minor con is a strong ammonia smell when you are up close to it while it is wet. No smell once it is cured. I would definitely wear the recommended gloves while applying. As others say, you will probably drop that towelette on the ground. It's slippery when wet. Keep it folded in quarters as it comes for ease of application. Turn to a new quarter once a side gets dirty or dry and fold it inside out for four more quarters to use. Bonus, but off-label -- at your own risk: The product is not intended for the soft rubber around the windows, but I tried it there too, and it looks amazing. All I did was wash the rubber with dish soap like the trim, and I rubbed it a few times with a wet microfiber cloth to get the superficial layer of oxidized rubber off. Then I applied Cerakote. It looks great. The rubber used to be blotchy and faded. The microfiber evened this out a little. I would not use melamine on the rubber -- this made it look worse in a test section. The Cerakote made it look great: jet black, much shiner, and much more even looking. Not quite "brand new" but far better than I thought possible. I thought I might need to replace the rubber. Now it's looking great next to the jet-black new paint. This afterthought use alone was worth the money. Can you apply a second coat the next day? They don't say you can, and I don't recommend it. This is meant to be one-shot, which is why you should check to make sure you don't miss any spots. I had two areas where I tried a second coat the next day. The first was on the plastic trim between the windshield and the hood. I didn't rub this trim much with melamine beforehand so there was a lighter area (light grey originally, the worst spot) that didn't get as black as the other sections so I did it again, which helped a little, but not much. I didn't wash this area with soap beforehand because I wasn't intending to fix it until I got going. Once you put things back to black you will start noticing other faded things more. Likewise, I did a second coat on the very top of the soft rubber at the bottom of the windows (the part which faces upward and thus gets the most sun), it wasn't as shiny as the other parts, so I went over that section gently again the next day with a fresh towelette. As soon as I did it, I thought it was a mistake. This didn't go well initially because the cured coating is very hydrophobic so the new, wet, Cerakote of the second coat goes on smooth initially and then "puddles up" into little droplets a few minutes later. It doesn't want to stick to the first coat. I thought I had messed it up, but I let it cure a little until the sticky phase, and spread it out again with the towelette. It stayed that time but gathered back a little into some streaks. I spread it once more a few minutes later and it looked good. It stayed even. It looks just fine a few days later, so I think it cured OK. I hope this product last for months as advertised. Even if it doesn't I would totally do it again because the results are superior, I still have half my towelettes left, and the product is not expensive. 10/10 would do again and will recommend to everyone.
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Reviewed in the United States on June 25, 2025
R
Verified Purchase
Robert Barger
Chelsea, US
★★★★★ 5
Easy to use, amazing results
Size: TRIM COAT KIT
This is an awesome product that is easy to use and has amazing results. My plastic trim never looked so good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026

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