HELIX COMPOSE Ci3 W165FM-S3 – 6.5″ Midbass Car Speakers (3Ω, 150W Peak Power)

HELIX COMPOSE Ci3 W165FM-S3 – Premium 6.5″ Midbass Speakers for High-Performance Car Audio Systems

The HELIX COMPOSE Ci3 W165FM-S3 is a premium 6.5-inch (165 mm) midbass speaker from the HELIX COMPOSE i3 series, engineered to deliver exceptional midbass performance, high efficiency and versatile installation options. Featuring 3 Ohm technology, an innovative Cenosphere-coated paper cone, a high-tech polymer basket and a powerful magnet system, the Ci3 W165FM-S3 produces deep, accurate bass and detailed midrange reproduction with impressive dynamics.

With 100W RMS power handling, 150W peak power, 92 dB sensitivity and a frequency response of 60 Hz – 3,500 Hz, this speaker is an ideal choice for OEM upgrades, active systems and premium multi-way installations.

High-Efficiency 3 Ohm Technology

The 3 Ohm impedance enables compatible amplifiers and factory head units to deliver more usable power than conventional 4 Ohm speakers.

Benefits include:

• Higher sound pressure levels
• Increased amplifier efficiency
• Stronger bass output
• Improved dynamics and overall performance

The Ci3 W165FM-S3 is perfectly matched with HELIX and MATCH amplifiers for maximum performance.

Cenosphere-Coated Paper Cone

The Ci3 W165FM-S3 features HELIX’s innovative Cenosphere-coated paper cone, designed for exceptional sound accuracy.

Benefits include:

• Increased cone stiffness
• Reduced unwanted resonances
• Excellent internal damping
• Fast and precise transient response
• Natural midrange reproduction

The lightweight yet rigid cone delivers outstanding detail while maintaining powerful bass performance.

Powerful 6.5″ Midbass Driver

The 165 mm midbass driver has been optimized for powerful low-frequency reproduction and excellent impulse response.

Features include:

• Powerful magnet system
• 25 mm voice coil
• High linear excursion
• Special rubber surround
• Polyurethane dust cap for smoother upper midrange response

These features ensure clean bass reproduction with minimal distortion, even at high listening levels.

High-Tech Polymer Basket

Unlike conventional steel baskets, the glass bead reinforced polymer composite basket offers exceptional rigidity with minimal resonance.

Advantages:

• Reduced unwanted vibrations
• Improved acoustic accuracy
• Better thermal stability
• Compact design for easier installation
• Lower distortion

ProConnect Terminal

HELIX’s ProConnect terminal provides professional-grade installation flexibility.

Benefits include:

• Automotive-grade connector
• Reverse polarity protection
• Secure locking connection
• Compatible with standard speaker cables
• Supports optional HELIX WireKits for Plug & Play installation

FlexMount165 Compatibility

The FlexMount165 mounting system allows the speaker to be adapted to a wide range of vehicle-specific installation locations.

Advantages:

• Easier OEM integration
• Vehicle-specific adapter compatibility
• Professional installation
• Non-destructive mounting options

Key Benefits

✅ 6.5″ (165 mm) premium midbass speaker
✅ 100W RMS / 150W Peak power handling
✅ High-efficiency 3 Ohm technology
✅ 92 dB sensitivity
✅ Frequency response: 60 Hz – 3,500 Hz
✅ Cenosphere-coated paper cone
✅ High-tech polymer composite basket
✅ Powerful magnet system with 25 mm voice coil
✅ ProConnect automotive-grade terminal
✅ FlexMount165 compatibility for OEM installations

Recommended Applications

The HELIX COMPOSE Ci3 W165FM-S3 is ideal for:

• OEM speaker upgrades
• Premium front door installations
• 2-way component systems
• 3-way active systems
• DSP-controlled audio systems
• HELIX and MATCH amplifier installations

Technical Specifications

Why Choose HELIX COMPOSE Ci3 W165FM-S3?

The HELIX COMPOSE Ci3 W165FM-S3 is built for enthusiasts seeking premium midbass performance without compromising installation flexibility. Its efficient 3 Ohm architecture, advanced Cenosphere-coated paper cone, high-tech polymer basket and ProConnect technology provide outstanding bass precision, dynamic response and long-term reliability.

Upgrade Your Car Audio Experience

Enjoy deeper bass, improved clarity and exceptional musical accuracy with the HELIX COMPOSE Ci3 W165FM-S3. Designed for seamless OEM integration and premium sound performance, it is the perfect midbass speaker for high-quality car audio systems.