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Helix Compose i7 M100FM-S3


  • 4” / 100 mm high-end midrange speaker 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
  • 1” / 25 mm voice coil ensures minimum thermal compression and high power handling
  • Automotive grade FlexConnect terminal for fast, secure and fail-safe connection
  • Powerful push-pull neodymium magnet system for highest efficiency and extremely low distortion
  • Universal FlexMount100 mounting ring (with standard 4-point mounting) included in delivery
  • Designed for the optionally available car-specific FlexMount100 adaptors which allow an acoustically optimized and professional integration in the original mounting location of the vehicle
  • Made in Germany

Helix Compose i7 M100FM-S3

  • Power Handling RMS / MAX P 100 / 150W
    Impedance Z 3 Ω
    DC Resistance Re 3.0 Ω
    Frequency Response   110 Hz - 7,000 Hz
    Resonance Frequency Fs 85 Hz
    Mechanical Q Factor Qms 4.58
    Electrical Q Factor Qes .52
    Total Q Factor Qts .47
    Compliance Cms 590 µm/N
    Equivalent Air Volume Vas 2.5 L
    Force Factor B*l 4.3 Tm
    Sensitivity SPL 91 dB @ 2.83 V / 1m
    87 dB @ 1W / 1m
    Cone Area Sd 55 cm²
    Moving Mass Mms 5.9 g
    Cone Material   UHD Crafted Paper Cone
    Mechanical Resistance Rms .69 kg/s
    Voice Coil Diameter ø 25 mm
    Voice Coil Heigh   5.5 mm
    Max Linear Excursion Xmax +/- 1.3 mm
    Outer Diameter ø 98 mm / 3.86"

    Outer Diameter

    w/ Universal Mounting Ring

    ø 104.5 mm / 4.11"
    Installation Diameter ø 89 mm / 3.50"
    Installation Depth   26.9 mm / 1.06"


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