Helix Compose Ci7 M100FM-S3 – 4″ Midrange Speakers – 3 Ohms

Description

HELIX Ci7 M100FM-S3

Overview
The HELIX COMPOSE i7 series delivers high-end sound for automotive applications. Fully designed and manufactured in Germany, these speakers combine advanced materials, precision engineering, and innovative technologies to provide detailed, dynamic, and distortion-free music reproduction. Optimized for HELIX and MATCH amplifiers, the i7 series ensures maximum performance and efficiency.

High-End Performance
The i7 series uses high-quality UHD (Ultra High Damping) paper cones, crafted for precise frequency response and excellent impulse behavior. Every component is engineered to deliver a balanced, immersive sound experience in the vehicle environment.

High Efficiency
Featuring 3 Ohm technology, the speakers are highly efficient and compatible with HELIX and MATCH amplifiers, ensuring maximum power output and clean, dynamic audio.

UHD Paper Cone
The Ultra High Damping paper cone is manufactured with a complex process that enhances stiffness and damping, resulting in clear midrange reproduction and controlled impulse response.

High-Tech Polymer Basket
The reinforced polymer composite basket, strengthened with glass beads, ensures rigidity, minimizes resonance, and resists thermal effects. Its compact size allows easy installation in tight spaces.

FlexMount100 – Universal and Vehicle-Specific Fit
FlexMount adaptors make installation easy across a wide range of vehicles. The speaker can be mounted in the factory location with acoustically optimized results using the included FlexMount100 ring.

FlexConnect – Secure Wiring
The FlexConnect terminal allows direct connection to the vehicle’s wiring harness while providing reverse polarity protection and a secure, reliable connection through vehicle-specific adaptors.

Features

• • 4” / 100 mm high-end midrange speaker for precise, dynamic sound

  • 3 Ohm technology for high amplifier output and efficiency

  • UHD paper cone for optimal impulse response and frequency balance

  • Polymer composite basket reinforced with glass beads for rigidity and low resonance

  • Special rubber surround for linear cone movement

  • Polyurethane dustcap for improved upper midrange response

  • 1” / 25 mm voice coil for high power handling and minimal thermal compression

  • FlexConnect terminal for secure automotive-standard connection

  • Powerful push-pull neodymium magnet system for high efficiency and low distortion

  • Universal FlexMount100 ring included; compatible with optional vehicle-specific FlexMount100 adaptors

  • Made in Germany
    
    Technical data

    Power handling RMS / max.	P	100 / 150 Watts
    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	0.52
    Total Q factor	Qts	0.47
    Compliance	Cms	590 µm/N
    Equivalent air volume	Vas	2.5 L
    Force factor	B*I	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		Ultra high damping (UHD) crafted paper cone
    Mechanical resistance	Rms	0.69 kg/s
    Voice coil diameter	ø	25 mm
    Voice coil winding height		5.5 mm
    Max. linear excursion	Xmax	+/- 1.3 mm
    Outer diameter	ø	98 mm / 3.86″
    Outer diameter with universal mounting ring	ø	104,5 mm / 4.11″
    Installation diameter	ø	89 mm / 3.50″
    Installation depth		26.9 mm / 1.06″
    Features		FlexConnect terminal, powerful push-pull neodymium magnet system, FlexMount100

    Compatibility

    • FlexMount100
    • FlexConnect Inlays