SKU: 33547261482

Helix Compose CB C87.2-S3 - 87mm Coaxial Speakers

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Description

Helix Compose CB C87.2-S3 - 87mm Coaxial SpeakersHELIX CB C87. 2 S3 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 CB C87.2-S3

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.

The essentials for an exceptional sound experience 

You might have already guessed from the name: our BASIC component systems are the perfect introduction to the world of HELIX COMPOSE, providing all the essentials for an exceptional sound experience in your vehicle. All components harmonize perfectly and form an ideal team with our HELIX and MATCH amplifiers, guaranteeing maximum performance and power output at all times.

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.

Powerful bass – always on point

In the BASIC series, our COMPOSE midbass driver combines high efficiency with excellent sound quality. The lightweight but stable polypropylene diaphragm provides exceptional sound performance while the sturdy basket is equipped with additional ventilation holes for optimized cooling. A powerful magnet system provides ideal impulse response and the soft polyurethane dustcap guarantees optimized frequency response in the upper midrange. Last but not least, the compact design is ideally suited for integrations in cramped spaces.

High frequency reproduction with unique dynamics

Of course, when entering the sound world of HELIX COMPOSE, precise highs are a must for an all-around exciting music experience. Accordingly, the tweeter uses a leightweight PEI dome as well as a highly efficient neodymium magnet – the result: unique dynamics in the high-frequency reproduction and crystal-clear sound.

Features

  • 2-way coaxial speaker system which combines high efficiency with exceptional sound performance
  • 3 Ohms technology for maximized power output of the amplifier
  • Compact design for trouble-free installation even in cramped conditions
  • Tweeter
    • 0.5” / 13 mm tweeter with PEI dome for accurate treble response
    • Very efficient neodymium magnet for high magnetic flux linearity
  • Midrange
    • 3.4” / 87 mm midrange with lightweight polypropylene cone which provides essential stiffness for exceptional sound performance
    • Sturdy steel basket with additional ventilation holes for better voice coil cooling and high power handling
    • Powerful magnet system for optimized impulse response
  • Crossover
    • Integrated with 6 dB slope

Technical data

Power handling RMS / Max.  P 40 / 60 Watts
Frequency response   110 Hz - 22,000 Hz
Impedance Z 3 Ω
Sensitivity  SPL 88 dB @ 2.83V / 1m
84 dB @ 1W / 1m
Outer diameter ø 86.9 mm / 3.43”
Installation diameter ø 79.0 mm / 3.11”
Installation depth    42.0 mm / 1.65”
   
Midrange  
Impedance Z 3 Ω
DC resistance Re 3.0 Ω
Resonance frequency Fs 92 Hz
Mechanical Q factor Qms 3.80
Electrical Q factor Qes 0.74
Total Q factor Qts 0.62
Compliance Cms 820 μm/N
Equivalent air volume Vas 1.5 L
Force factor B*l 2.9 Tm
Cone area Sd 36 cm2
Moving mass Mms 3.6 g
Mechanical resistance Rms 0.52 kg/s
Voice coil diameter  ø 25 mm

Voice coil winding height

   8.3 mm
Max. linear excursion Xmax +/- 2.2 mm
   
Tweeter  
Voice coil diameter ø 13 mm
   
Features  
Tweeter   PEI dome and neodymium magnet
Midbass  

Injected polypropylene cone
Crossover   Integrated, 6 dB highpass
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: 33547261482

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4.3 ★★★★★
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I
Verified Purchase
I'm not a cat.
Massapequa, US
★★★★★ 5
6 years of support, but set your expectations.
Digital Storage Capacity: 128 GB, Color: Blue
I was a Moto user. Before moving over to Android, I was among the 0% that used a Windows Phone. My needs have been modest, so the idea of shelling out nearly a thousand or more for a phone never crossed my mind. What is important is ongoing support, which rules out every cat-sat-on-a-keyboard brand. It’s also the reason why I switched from Moto over to Samsung; offering 6 years of OS and security support (from initial release) on an entry-level class device is a HUGE PLUS. In the case of this A17, that’s all the way into August 2031. This is NOT a fast phone by any means, however. Playing media and general browsing? Sure. Playing video? Fine. Lots of videos at once like on some social media platforms? Not so much. Taking videos? It's only 1080p. More immersive games? I wouldn’t bother. Between the processor and the 4GB of RAM, some patience will be necessary, especially for folks running lots of apps. There is more underlying “bloat” here; turning off the animations under developer mode along with unneeded services improves the experience a bit, however. The A17 phone case I purchased separately for this arrived labeled as an A26; the glass screen protector as an A16, so apparently this phone shares a very similar design with those models. No 3.5mm jack but there is a micro SD slot which it shares with the SIM tray. The AMOLED screen is a huge plus; great contrast and sharpness, which is NOT common in this entry-level class. It does have NFC for tap to pay, but no wireless charging. Will this win any benchmarks? No. Folks expecting sports car performance at an economy car price will be extremely disappointed. This does not nor will not compare to phones that cost more. However, if your needs are modest, there’s no need to spend $$$ either when this will do the job. --- Edit: Just for added confirmation about ongoing support (or lack thereof), the Moto G17 that was just released at the end of January 2026 does NOT promise ANY OS updates at all. That's a stark contrast to the A17 here with a promise of 6 years of OS and security updates. Edit 2: Wireless Android Auto connectivity has become tedious with the aftermarket generic Android head unit on my vehicle, with the phone often forgetting to connect. The real culprit is that those units are often running hardware and an OS older than what they advertise; it may say 15 on the surface but underneath, it's actually running like 10 or even older. Getting a USB wired-to-wireless CarPlay/Android Auto adapter fixed that; the phone has remembered to connect every time since. For less than $10, it was worth taking that chance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
D
Verified Purchase
DD
Lexington, US
★★★★★ 4
Bright Screen, Easy to Use, and Reliable for Everyday Life
Digital Storage Capacity: 128 GB, Color: Blue
I’ve been using the Samsung Galaxy A17 5G for a bit now, and overall I’m really happy with it. It feels like one of those phones that quietly does almost everything well without costing a fortune. The first thing I noticed was the display. The large AMOLED screen is beautiful. Colors are vibrant, text is crisp, and it makes everything from scrolling to watching videos feel more high end than I expected. It’s easily one of my favorite features. This phone is also very easy to use and user friendly. The layout is straightforward, settings are easy to find, and everything just makes sense without a steep learning curve. It’s a great option if you want something simple to navigate without feeling overly basic. Performance has been solid for everyday tasks like texting, browsing, and using apps. One thing I did notice is that right after powering it on, the screen can feel a bit sluggish and slightly unresponsive. It seems like the system and background apps are still loading. Once everything finishes starting up, though, it runs smoothly and works great. The camera is another nice surprise. In good lighting, photos come out sharp with natural looking color. Outdoor shots especially look really nice. Low light is a bit hit or miss, but still decent for casual use. Battery life easily gets me through a full day, and the fast charging is really convenient when I need a quick boost. I also like the durable feel of the phone. It’s slim but doesn’t feel fragile, and the expandable storage is a huge plus if you store a lot of photos or apps. A couple minor downsides: it can slow down a little if too many apps are open at once, and low light photos aren’t its strongest area. Overall: This is a dependable, user friendly phone with a gorgeous screen and solid everyday performance. It’s a great choice if you want something simple, functional, and comfortable to use without spending a lot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
E
Verified Purchase
Eldis Galano Matos
Whiting, US
★★★★★ 5
Good budget phone with a great display
Color: Gray
The Samsung Galaxy A16 is a solid choice for everyday use. The 6.7” AMOLED screen with 90Hz looks bright and smooth, perfect for watching videos and browsing. Performance is decent for daily tasks, and the 50MP camera takes nice photos for the price. Keep in mind it’s not built for heavy gaming, but for calls, apps, and social media it works very well. Big, vibrant display Good camera for the price Not for heavy use Overall: great value for a budget smartphone.
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Reviewed in the United States on April 19, 2026
C
Verified Purchase
Charles Misak
Lake Worth, US
★★★★★ 5
quality
Color: Black
Seems to be a quality product so far.
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Reviewed in the United States on June 11, 2026
H
Verified Purchase
HOYCE
West Palm Beach, US
★★★★★ 5
Budget-Friendly Powerhouse With a Premium Feel ⭐⭐⭐⭐⭐
Color: Black, Color: Black
I’ve been using the Samsung Galaxy A16 4G for a little while now and honestly this phone surprised me in a good way. For the price, you get a huge 6.7” AMOLED display with smooth 90Hz refresh rate that makes videos, scrolling, and everyday use feel way more premium than expected. The screen is bright, colorful, and looks great indoors or outside. The phone runs smoothly for daily tasks like social media, YouTube, calls, browsing, and multitasking. Battery life has been excellent and easily lasts all day for me. The included 25W fast charger is a huge bonus because it charges up pretty quickly. The 50MP camera also takes really solid photos in good lighting with nice detail and color. For an affordable unlocked phone, I was impressed with the overall camera quality. Another thing I liked is the factory unlocked dual SIM support which makes it super convenient for travel or separate work and personal lines. Build quality feels sturdy, the black finish looks clean, and the splash resistance gives extra peace of mind. If you want a reliable Samsung phone without spending flagship money, this is an easy recommendation. Great value, dependable performance, and way more features than I expected at this price point.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026

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