Helix CI5 S200FM-S2 - i5 - Woofer 200mm 2 OhmHelix CI5 S200FM-S2 - i5 - Woofer 200mm 2 Ohm

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The HELIX Ci5 S200FM-S2 is the result of continuous technological evolution in the world of car hi-fi audio, designed by Audiotec Fischer within the revolutionary HELIX COMPOSE platform. This system stands out for its ability to blend the advantages of universal solutions with the precision of vehicle-specific systems, resulting in a speaker designed "from within the vehicle, for the vehicle." This intelligent engineering approach leverages innovative materials and cutting-edge technologies to deliver exceptional sound, extraordinary dynamics, and maximum efficiency, all while maintaining maximum compatibility with a wide range of modern vehicles.

Belonging to the i5 series, the Ci5 S200FM-S2 represents the perfect synthesis of the sonic ambition of the i7 line and the practicality of the i3, aimed at those seeking an authentic hi-fi listening experience even in the car. Each component is optimized for integration with HELIX and MATCH amplifiers, ensuring high performance in any condition. The exclusive mechanical solutions introduced in the COMPOSE line not only improve sound quality, but also offer concrete advantages during installation, making this speaker a true innovation in the universal car audio panorama.

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2-in-1 Midwoofer and Subwoofer for High-End OEM Installations

The HELIX Ci5 S200FM-S2 represents the perfect synthesis of a midwoofer and subwoofer, delivering astonishing performance in an ultra-compact package. This 200 mm (8") speaker, designed for OEM under-seat installation (BMW) or in the bulkhead (Mercedes), guarantees a linear excursion of ±7.8 mm (±7.5 mm in the D2 version), with a deep and precise frequency response even at high sound pressure levels.

Despite its minimal footprint of just 47 mm deep, this hybrid driver delivers powerful and controlled low-frequency dynamics. The goal was clear: to develop a woofer that would not compromise audio performance while still being compatible with limited space. Thanks to FlexMount 200 technology, integration into compatible vehicles is simple, safe, and high-performance.

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Reinforced engineering polymer basket – Maximum lightness and rigidity

Like the entire HELIX COMPOSE series (i3, i5, i7), the Ci5 S200FM-S2 uses a high-performance polymer composite basket reinforced with glass microspheres. This innovative material ensures:

- Excellent structural rigidity with low mass;

- No parasitic resonances,

- Elimination of magnetic flux modulation,

- Maximum resistance to thermal variations.

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Furthermore, the compact basket design allows installation even in the tightest spaces, making this speaker ideal for complex OEM configurations.

Flexible Configuration – Available in 1x2 Ohm (S2) or 2x2 Ohm (D2)

The Ci5 S200FM-S2 model features a single 2 Ohm voice coil, while the D2 version offers dual 2 Ohm voice coils. This flexibility allows for optimized loading based on the amplifier used, whether in mono, stereo, or multi-channel configurations, maximizing available power and system efficiency.

FlexMount 200 Mounting System – Uncompromising OEM Integration

FlexMount 200 technology is a modular mounting system based on dedicated adapter rings, allowing you to easily transform a universal speaker into a vehicle-specific one. The Ci5 The S200FM-S2 can thus be installed in original OEM locations quickly, precisely and acoustically optimised, ensuring invisible and professional integration.

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Parameters Values

• Power Handling RMS / Max. P 200 / 400 Watts
• Impedance Z 1 x 2Ω
• DC Resistance Ref 1.8Ω
• Frequency Response 25 - 500 Hz
• Resonant Frequency Fs 47 Hz
• Mechanical Q factor Qms 9.12
• Electrical Q factor 0.79
• Total Q factor Qts 0.73
• CMS Compliance 297 µm/N
• Equivalent Air Volume Vas 15.7 L
• Force Factor B*l 5.1 mT
• SPL Sensitivity 92 dB at 2.83 V / 1 m 86 dB at 1 W / 1 m
• Cone Area Sd 194 cm²
• Moving Mass Mms 38 g
• Cone Material Injected Polypropylene
• Mechanical Resistance Rms 1.29 kg/s
• Voice coil diameter: 38 mm
• Voice coil winding height: 20.6 mm
• Maximum linear excursion: Xmax +/- 7.8 mm
• Outer diameter: 195 mm
• Installation diameter: 173.5 mm
• Installation depth: 47.0 mm
• FlexMount200 Features