Helix Compose i7 Ci7 C165.2FM-S3 Coaxial 6.5 Inch FlexMount Speakers 150w RMS
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The HELIX Ci7 C165.2FM-S3 is a 6.5-inch coaxial FlexMount speaker set from the flagship COMPOSE i7 series. It handles 150W 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
| Made in GermanyNote | The speaker does not have an integrated crossover. For active operation, two amplified DSP channels per speaker are required and it is essential to set a highpass filter for the tweeter in the pre-connected DSP or DSP amplifier. Alternatively, the separately available crossover Ci7 FX-UNI.2 can be used. |
|---|---|
| Power handling | RMS / Max. P 150 / 225 Watts |
| Frequency response | 50 Hz - 30,000 Hz |
| Impedance | Z 3 Ω |
| Sensitivity | SPL 92 dB @ 2.83V / 1m 88 dB @ 1W / 1m |
| Impedance | Z 3 Ω |
| Cone | area Sd 131 cm2 |
| Voice coil | diameter ø 37 mm |
| Voice coil | winding height 13.4 mm |
| Impedance | Z 4 Ω |
| Voice coil | diameter ø 20 mm |
| Crossover 2-way active | two amplified DSP channels per speaker required |
| 2-way passive | i7 FX-UNI.2 optionally available |
More specs
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What's Included
- 2 x Ci7 C165.2FM-S3
- 2 x Tweeter connection cable
- 2 x Midbass connection cable
- 2 x 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.
