SKU: 87831349543

Helix Compose i5 (single 2 ohm coil) BMW Underseat Woofer upgrade 8 Inch FlexMount Subwoofers 200w

Sale price$166.50 Regular price$185.00
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Description

Helix Compose i5 (single 2 ohm coil) BMW Underseat Woofer upgrade 8 Inch FlexMount Subwoofers 200wHELIX Ci5 S200FM S2 + CFMK200 BMW. 1S (This kit is for single 2 ohm model, ideal for match helix amplifiers) will not work for HK amplifiers with factory 8ohm woofers FlexMount200 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

HELIX Ci5 S200FM-S2 + CFMK200 BMW.1S

(This kit is for single 2 ohm model, ideal for match/helix amplifiers) will not work for HK amplifiers with factory 8ohm woofers 

FlexMount200 – 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.

For the comfortable installation of maximum bass upgrades in BMW & MINI models

The CFMK200 BMW.1S adaptor has been specially developed for the installation of the Ci5 S200FM hybrid subwoofer, and thus for maximum bass upgrades in the factory mounting locations of all BMW & MINI model series with under-seat subwoofers. This adaptor ring is ideally adapted to the BMW- & MINI-specific shape, ensuring effortless installation and optimum sound quality. The pre-applied seals and the moulded-in connection terminal enable a professional as well as convenient installation. A connector housing for universal connection is also included.

For the comfortable installation of maximum bass upgrades in Land Rover and Jaguar

Land Rover / Jaguar vehicles with factory installed woofers in the doors

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 Sound Sensation for sophisticated music lovers 

The HELIX COMPOSE i5 series is the link between i7 and i3, created for sophisticated music lovers with a sparked ambition for a true hi-fi experience. A lovechild of phenomenal sound and unmatched practicality: Developed with the vision of unique speaker highlights that are also true problem solvers. All speaker impedances are perfectly matched for the combination with our HELIX and MATCH amplifiers, guaranteeing maximum performance at any time. In addition, we implemented our COMPOSE-exclusive mechanical technologies that offer unbeatable practical benefits. 

Mid-woofer driver and subwoofer in one – the best of both worlds 

The Ci5 S200FM, as a 200 mm hybrid speaker, strikes the perfect balance between a mid-woofer driver and a subwoofer, impressing with its exceptionally high excursion, power handling and output volume. With its linear excursion of +/- 7.8 mm (D2: +/- 7.5 mm), it consistently delivers controlled and clear low-frequency reproduction, even at high sound pressure levels and low frequencies. The aim was to develop a speaker that works perfectly in BMW under-seat and Mercedes bulkhead applications without any compromises despite the extremely low installation depth of 47 mm. Thanks to the FlexMount200 technology, the Ci5 S200FM can be integrated comfortably and its design opens up completely new integration possibilities.

High-tech polymer basket

All HELIX COMPOSE i7, i5 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.

Flexible connection – 2 x 2 or 1 x 2 Ohms

The chassis are available as 1 x 2 Ohms (S2) or 2 x 2 Ohms (D2) version. Thus, these woofers always offers the right solution for every amplifier configuration to get the maximum performance out of it – whether mono, 2-channel or even multi-channel amplifier. 

FlexMount 200 – 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.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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]
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SKU: 87831349543

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D. E. Washington
Battle Creek, US
★★★★★ 5
Nice shirt
Color: Blue/White, Size: X-Large
Nice shirt
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Reviewed in the United States on April 16, 2026
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Do NOT have shipped without the extra box
Lowell, US
★★★★★ 5
Good for the price point
Color: Olive 09, Size: Medium
I bought this as a Christmas gift for one of my teen boys. I originally bought this shirt for our 16 year old but when I received it, I quickly realized the quality would be off putting to him, so I gifted it to one of my other boys that is not a material/brand snob. The color is spot on with the description. Our son loves the shirt’s thin knit and softness when wearing. The quality could be better but it’s good for the price point. Fits as described and is holding up to our fifteen year old nicely. Would buy again.
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Reviewed in the United States on February 17, 2026
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flredsox
Whiting, US
★★★★★ 5
Perfect Fit, Perfect Material
Color: Lt Blue 09, Size: Large
Large was a perfect fit for me. Chest, shoulders and waste perfect. Arms surprisingly long as I have long arms (35”). I had to pull up the left sleeve to get out of my grip. Material was very soft, light and stretchy. Perfect to keep arms out of the sun and still cool enough on a 94 degree here in Florida. For those w a belly, this might not work. I have a flat stomach some love handles and somewhat squarish body type (not a V..I’m 71) so perfect belly space for me. I’m 6’, 185. The other issue for me is my shoulder arthritis and getting a sweaty shirt off, no problem. The shirt wicked away the water and the shirt was stretchy enough to get it off easily. I am going to wash it and make sure it holds it shape then if positive I will buy a couple more. I’ve tried several shirts, this is great!
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Reviewed in the United States on May 24, 2026
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Amazon Customer
Whiting, US
★★★★★ 4
Nice Bus casual Fit
Color: Black 09, Size: X-Large
I love the feel of the shirt. I got an XL and it's a little big. I'm 6' 2" about 230 I'm gonna order a large to compare. Over I like the shirt.
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Reviewed in the United States on January 24, 2026
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Juan R.
Birmingham, US
★★★★★ 5
Gran precio y calidad
Color: Black 09, Size: Medium
Muy buen diseño en el cuello interno y muy buena calidad.
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Reviewed in the United States on May 12, 2026

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