Skip to product information
1 of 1
Helix

Helix Ci3 C165.2FM-S3 MK2 - Compose Series 6.5" 2-Way Coaxial Speakers

Helix Ci3 C165.2FM-S3 MK2 - Compose Series 6.5" 2-Way Coaxial Speakers

View full details

Product Description

Special Order Only

Features

  • 2-way performance coaxial speaker system which combines outstanding sound quality with versatile physical integration options

  • High efficiency and 3 Ohms technology for maximized power output of the amplifier

  • Automotive grade ProConnect connection terminal allows the use of conventional speaker cables or a fast, secure and fail-safe connection via optionally available WireKits

Tweeter

  • 0.75” / 20 mm performance tweeter with black aluminum dome for accurate, pure and detailed treble response

  • High-quality aluminum dome with perfect balance of low weight and high rigidity – for natural brilliance and fine detail reproduction

  • Refined highly efficient neodymium magnet for high magnetic flux linearity and optimized performance

Midbass

  • 6.5" / 165 mm midbass with unique Cenosphere coated paper cone for precise and detailed sound reproduction

  • High-tech polymer composite basket reinforced with glass beads for enormous rigidity and minimized ringing

  • Powerful magnet system for high efficiency and optimum impulse response

Crossover

  • Integrated with 6 dB slope

  • Designed for the optionally available car-specific FlexMount165 adaptors which allow an acoustically optimized and professional integration in the original mounting location of the vehicle

  • Designed for optionally available, car-specific WireKits which allow a non-destructive integration

Technical data

  • Power handling - 100w RMS

  • Power Handling - 150w Peak

  • Frequency response - 60 Hz - 25,000 Hz

  • Impedance - Z - 3 Ω

  • Sensitivity-  SPL - 92 dB @ 2.83V / 1m - 88 dB @ 1W / 1m

  • Outer diameter ø - 165.0 mm / 6.50”

  • Installation diameter ø - 142.0 mm / 5.59”

  • Installation depth - 60.7 mm / 2.39”

Midbass

  • Impedance - Z - 3 Ω

  • DC resistance - Re - 3.1 Ω

  • Resonance frequency - Fs - 72 Hz

  • Mechanical Q factor - Qms - 4.02

  • Electrical Q factor - Qes - 1.04

  • Total Q factor - Qts - 0.82

  • Compliance - Cms - 466 μm/N

  • Equivalent air volume - Vas - 11.5 L

  • Force factor - B*l - 3.8 Tm

  • Cone area - Sd - 133 cm2

  • Moving mass - Mms - 10.4 g

  • Mechanical resistance - Rms - 1.17 kg/s

  • Voice coil diameter ø - 25 mm

  • Voice coil winding height - 10.5 mm

  • Max. linear excursion - Xmax - +/- 3.2 mm

  • Tweeter - Voice coil diameter ø - 20 mm

Features 

  • Tweeter - Aluminum dome and neodymium magnet

  • Midbass-  Paper with Cenosphere coating, ProConnect terminal and FlexMount165

  • Crossover - Integrated, 6 dB highpass

Compatibility

  • FlexMount165

  • WireKits

Scope of delivery

  • 2 x Ci3 C165.2FM-S3 MK2

  • 1 x Mounting material