Helix Compose i7 Ci7 M100FM-S3 Midrange 4 Inch 10cm FlexMount Speakers 100w RMS
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The HELIX Ci7 M100FM-S3 is a 4-inch (10cm) midrange FlexMount speaker set from the flagship COMPOSE i7 series. It handles 100W RMS.
Developed Inside the Vehicle
COMPOSE is HELIX’s answer to modern car design. Developed “inside the vehicle, for the vehicle”, it blends universal speakers with the advantages of vehicle-specific systems.
3 Ohm Efficiency
Smart 3-ohm technology raises efficiency and maximum sound pressure. Impedances are matched to HELIX and MATCH amplifiers, so the pairing always delivers full performance.
Made in Germany
Drawing on know-how from HELIX’s high-end sister brand BRAX, the i7 series is made entirely in Germany and tuned for uncompromising music enjoyment. UHD crossover technology completes the package.
Specification
| Power handling | RMS / Max. P 100 / 150 Watts |
|---|---|
| Impedance | Z 3 Ω |
| Frequency response | 110 Hz - 7,000 Hz |
| Sensitivity | SPL 91 dB @ 2.83 V / 1m 87 dB @ 1W / 1m |
| Cone | area Sd 55 cm² |
| Cone | material Ultra high damping (UHD) crafted paper cone |
| Voice coil | diameter ø 25 mm |
| Voice coil | winding height 5.5 mm |
More specs
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What's Included
- 2 x Ci7 M100FM-S3
- 2 x Universal FlexMount100 (with standard 4-point mounting)
- 2 x FlexConnect inlay A
- 2 x Universal connection cable
- 2 x Crossover connection cable
- 2 x Mounting material
About the brand
Helix
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Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do I need an amplifier to run these speakers?
A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.
Q: What is the difference between coaxial and component speakers?
A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
