SKU: 152703383

Helix Compose CFMK100 MB.5 - 4"-100mm Mercedes Speaker Adapter Rings

Sale price$16.19 Regular price$17.99
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Helix Compose CFMK100 MB.5 - 4"-100mm Mercedes Speaker Adapter RingsHELIX CFMK100 MB. 5 FlexMount is our patented mounting system, based on specially developed adaptor rings. With just one turn, your universal 4" 100 mm HELIX COMPOSE midrange speaker with FlexMount100 technology becomes car specific, allowing an easy and acoustically optimized installation in the original mounting position of the vehicle. Features Vehicle specific adapter ring for a professional and acoustically optimized integration of the 4 100 mm

HELIX CFMK100 MB.5

FlexMount is our patented mounting system, based on specially developed adaptor rings.
With just one turn, your universal 4" / 100 mm HELIX COMPOSE midrange speaker with FlexMount100 technology becomes car-specific, allowing an easy and acoustically optimized installation in the original mounting position of the vehicle.

Features

  • Vehicle-specific adapter ring for a professional and acoustically optimized integration of the 4” / 100 mm HELIX COMPOSE midrange with FlexMount100 Technology in the original mounting location of the vehicle
  • Easy installation and secure fixation of the midrange in the adaptor ring thanks to patented bayonet lock
  • Including gaskets to prevent acoustic short circuits

Compatibility

Speaker:

  • Ci7 M100FM-S3
  • Ci3 M100FM-S3
  • Ci3 K100.2FM-S3
  • Ci3 C100.2FM-S3

Car models:

  • Suitable for Mercedes vehicles with factory installed midrange
  • Further information about the vehicle compatibility can be found in our FlexMount Finder
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: 152703383

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Nick Hinman
Omaha, US
★★★★★ 5
Great
Format: Spiral-bound
If you are working in EMS and you don't have this in your kit, you need to rethink your choices. This has tons of information that is quicker to find than an app. This is my 9th or 10th one in my career. Good information to have.
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Reviewed in the United States on November 24, 2025
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Alex
Houston, US
★★★★★ 5
Sends
Format: Spiral-bound
Wife likes it
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Reviewed in the United States on November 13, 2025
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Missy Evans
New York, US
★★★★★ 5
Great Reference
Format: Spiral-bound
great reference guide
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Reviewed in the United States on May 24, 2025
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Courtney Stevens
Massapequa, US
★★★★★ 1
Poor quality messed up printing
Format: Spiral-bound, Format: Spiral-bound
Multiple pages that are printed wrong and you can’t read definitely would not recommend!
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Reviewed in the United States on May 2, 2025
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Ellen
Battle Creek, US
★★★★★ 5
Just perfect
Format: Paperback
Get this for nursing school, you won’t regret it
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Reviewed in the United States on April 26, 2026

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