Helix Compose Ci7 W165FM-S3 – 6.5″ Woofers – 3 Ohms
£349.99
Description
HELIX Ci7 W165FM-S3
A premium speaker system designed for top-tier in-car sound. The HELIX COMPOSE platform combines the versatility of universal speakers with the precision of vehicle-specific systems. Built with advanced materials and engineering, it delivers powerful dynamics, excellent clarity, and smooth performance across different vehicle types.
i7 – High-End Performance with German Precision
The HELIX COMPOSE i7 series is crafted for exceptional sound quality, built with precision in Germany using advanced materials and acoustic design. Each speaker is tuned for perfect compatibility with HELIX and MATCH amplifiers, ensuring maximum performance. The i7 lineup also introduces refined mechanical technologies that provide both improved durability and practical installation benefits.
High Efficiency
The series uses 3-Ohm technology, enabling optimal amplifier output and higher sound pressure levels. This design ensures efficient energy use while producing a noticeable boost in performance and clarity.
Ultra High Damping Paper Cone
The UHD (Ultra High Damping) paper cone is handmade through a specialized process that ensures an ideal balance between stiffness and damping. This results in fast, accurate sound reproduction and a natural frequency response that brings out every musical detail.
High-Tech Polymer Basket
Constructed from a durable polymer composite reinforced with glass fibers, the basket minimizes unwanted vibrations and resists heat. Its compact design allows easier installation in tighter mounting spaces while maintaining long-term stability and rigidity.
FlexMount165 – Universal Meets Vehicle-Specific
The FlexMount system allows easy adaptation to a wide range of vehicles through optional mounting rings. This ensures a secure and acoustically optimized fit in the original factory locations.
ProConnect – Secure and Reliable Connection
The ProConnect terminal ensures a safe and stable wiring connection. It supports standard speaker cables as well as quick-connect options for faster setup and reliable polarity protection.
WireKits – Easy Plug & Play Connection
Optional WireKits allow direct integration with the vehicle’s factory wiring or external crossover. These cables are built to automotive-grade standards, ensuring durability, secure locking, and resistance to daily wear in the vehicle environment.
Features
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6.5” / 165 mm high-end midbass speaker delivering accurate and detailed sound
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High efficiency with 3-Ohm impedance for maximum amplifier output
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Handmade UHD (Ultra High Damping) paper cone for fast, precise response and natural sound
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Reinforced polymer composite basket for rigidity and reduced resonance
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Special rubber surround for extended linear cone movement
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Polyurethane dust cap for enhanced midrange smoothness
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Large 1.46” / 37 mm voice coil for high power handling and reduced thermal compression
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ProConnect terminal for secure, flexible wiring options
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Robust magnet system ensuring efficiency and minimal distortion
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Compatible with FlexMount165 adaptors for seamless, optimized installation
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Works with optional WireKits for quick, non-destructive integration
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Precision-crafted in Germany
Technical data
Power handling RMS / max. P
150 / 225 Watts Impedance Z 3 Ω DC resistance Re 2.9 Ω Frequency response 50 Hz – 3,500 Hz Resonance frequency Fs 60 Hz Mechanical Q factor Qms 3.00 Electrical Q factor Qes 0.68 Total Q factor Qts 0.55 Compliance Cms 480 µm/N Equivalent air volume Vas 11.6 L Force factor B*I 4.8 Tm Sensitivity SPL 92 dB @ 2.83 V / 1m
88 dB @ 1W / 1mCone area Sd 131 cm² Moving mass Mms 14.8 g Cone material Ultra high damping (UHD) crafted paper cone Mechanical resistance Rms 1.83 kg/s Voice coil diameter ø 37 mm Voice coil winding height 13.4 mm Max. linear excursion Xmax +/- 3.7 mm Outer diameter ø 165 mm / 6.5″ Installation diameter ø 142 mm / 5.59″ Installation depth 65.8 mm / 2.59″ Features ProConnect terminal,
FlexMount165Compatibility
- FlexMount165
- WireKits
