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Helix

Helix Ci7 W165FM-S3 - Compose Series 6.5" MidWoofer Speakers

Helix Ci7 W165FM-S3 - Compose Series 6.5" MidWoofer Speakers

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Product Description

Special Order Only

Features

  • 6.5” / 165 mm high-end midbass which combines outstanding sound performance with versatile physical integration options

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

  • Ultra High Damping (UHD) crafted paper cone for outstanding impulse response and unmatched frequency response

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

  • Specially shaped rubber surround for high linear cone excursion

  • Polyurethane dustcap for optimized frequency response in the upper midrange area

  • Large 1.46” / 37 mm voice coil ensures minimum thermal compression and high power handling

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

  • Powerful magnet system for highest efficiency and extremely low distortion

  • 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

  • Made in Germany

Technical data

  • Power handling - 150w RMS

  • Power Handling - 225w Peak

  • 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 / 1m

  • Cone 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,

  • FlexMount165

Compatibility

  • FlexMount165

  • WireKits

Scope of delivery

  • 2 x Ci7 W165FM-S3

  • 2 x Connection cable

  • 2 x Mounting material