Description
HELIX Compose Ci5 M50FM-S3 – 2″ Wideband Car Speakers (3Ω, 100W Peak)
HELIX Ci5 M50FM-S3 – High-End Compact Wideband Speakers for Premium Car Audio Systems
The HELIX Compose Ci5 M50FM-S3 is a premium 2-inch (50 mm) wideband car speaker designed for advanced OEM upgrades, DSP-based systems and high-end custom installations where space is limited but sound quality is essential.
Featuring a silicon-coated paper cone, powerful push-pull neodymium magnet system and advanced FlexMount50 installation technology, the Ci5 M50FM-S3 delivers exceptional clarity, natural vocals and detailed high-frequency reproduction from an extremely compact design.
Its wide frequency response from 300 Hz to 20,000 Hz allows flexible system configurations, including full-range applications, center channel setups and advanced multi-way audio systems without requiring a separate tweeter.
Audiophile Wideband Performance in a Compact Design
The HELIX Ci5 M50FM-S3 was engineered for enthusiasts who demand maximum sound quality from minimal installation space.
Its compact construction makes it ideal for:
- Dashboard installations
- A-pillar mounting
- Center channel applications
- OEM speaker replacements
- DSP-optimized sound systems
The wide operating range allows the speaker to reproduce detailed vocals, instruments and high frequencies with excellent phase accuracy.
Advanced Silicon-Coated Paper Cone
The specially developed silicon-coated paper cone provides the perfect balance between:
- Lightweight construction
- High rigidity
- Excellent internal damping
- Natural sound reproduction
This technology reduces unwanted resonances while delivering precise and smooth midrange performance.
Powerful Push-Pull Neodymium Magnet System
The advanced push-pull neodymium motor system provides:
- High efficiency
- Low distortion
- Improved cone control
- Excellent dynamic response
The optimized magnetic structure allows the speaker to achieve impressive performance despite its ultra-compact size.
Extended Frequency Response Without a Separate Tweeter
Thanks to the large cone area and aluminum dust cap directly connected to the voice coil, the Ci5 M50FM-S3 achieves a wide frequency range of:
300 Hz – 20,000 Hz
Benefits:
- Clear vocal reproduction
- Detailed high frequencies
- Smooth sound transition
- Excellent transparency
This makes it suitable for full-range systems and compact premium audio upgrades.
FlexMount50 – Universal Meets Vehicle-Specific Installation
The included FlexMount50 mounting system allows easy adaptation to many vehicle applications.
Advantages:
- OEM-style installation
- Flexible mounting options
- Suitable for Audi, Ford, Mercedes and other vehicles
- Improved acoustic positioning
The speaker can be professionally integrated into factory locations without major modifications.
High-Tech Polymer Composite Basket
The reinforced polymer basket provides:
- Maximum rigidity
- Reduced unwanted vibrations
- Minimal self-resonance
- Improved mechanical stability
This ensures cleaner sound reproduction and reliable performance.
Key Benefits
✅ Premium 2″ (50 mm) wideband speaker system
✅ 70W RMS / 100W Peak power handling
✅ High-efficiency 3Ω technology
✅ Wide frequency response up to 20 kHz
✅ Silicon-coated paper cone
✅ Push-pull neodymium magnet system
✅ Extremely compact installation design
✅ Ideal for DSP and OEM upgrade systems
✅ FlexMount50 installation technology
Recommended Applications
The HELIX Ci5 M50FM-S3 is ideal for:
- Premium OEM audio upgrades
- DSP-controlled systems
- Center channel speakers
- A-pillar installations
- Compact 2-way and 3-way systems
- Custom high-end car audio builds
Technical Specifications
| Specification | Value |
|---|---|
| Speaker Type | Wideband Speaker |
| Size | 50 mm / 2″ |
| RMS Power | 70 W |
| Peak Power | 100 W |
| Impedance | 3 Ω |
| Frequency Response | 300 Hz – 20,000 Hz |
| Sensitivity | 89 dB @ 2.83V / 1m |
| Magnet | Push-pull Neodymium |
| Cone Material | Silicon coated paper cone |
| Voice Coil Diameter | 20 mm |
| Xmax | ±3.5 mm |
| Outer Diameter | 59.8 mm |
| Installation Diameter | 50.9 mm |
| Installation Depth | 25.2 mm |
Package Includes
✔ 2 x HELIX Ci5 M50FM-S3 Wideband Speakers
✔ 2 x Universal FlexMount CFM50 MULTI.1 Rings
✔ 2 x Speaker Gaskets
✔ 2 x Mounting Rings with Grilles
✔ Mounting accessories
Why Choose HELIX Ci5 M50FM-S3?
The HELIX Ci5 M50FM-S3 combines advanced engineering, compact dimensions and premium sound quality to deliver a true high-fidelity experience in installations where traditional speakers cannot fit.
With its wide frequency response, low distortion and flexible mounting options, it is the perfect choice for enthusiasts building a detailed, powerful and professionally tuned car audio system.
Upgrade Your Car Audio Experience
Experience clearer vocals, improved sound staging and exceptional detail with the HELIX Compose Ci5 M50FM-S3 premium wideband speakers – designed for compact installations without compromising sound quality.

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