Helix Compose Ci3 M100FM-S3 – 4″ Midrange Speakers – 3 Ohms

Description

HELIX Ci3 M100FM-S3

Overview
HELIX COMPOSE speakers are built to deliver precision, clarity, and performance in a wide range of vehicles. The series combines advanced materials with smart engineering to ensure powerful sound, high efficiency, and reliable performance in compact designs.

Balanced Performance
The HELIX COMPOSE i3 series provides an excellent balance of performance and value, offering detailed and dynamic sound through quality components and intelligent construction. The impedance levels are optimized to work perfectly with HELIX and MATCH amplifiers for consistent, high-level output.

High Efficiency
Equipped with 3 Ohm technology, these speakers maximize power output and efficiency, ensuring compatibility with HELIX and MATCH amplifiers for strong and clean sound at all volumes.

Cenosphere Paper Cone
The cone features a special “Cenosphere” coating that integrates hollow spheres into a polyamide layer, increasing stiffness while improving internal damping. This design produces a lightweight yet rigid cone for accurate and controlled sound reproduction.

High-Tech Polymer Basket
Constructed from a reinforced polymer composite mixed with glass beads, the basket delivers exceptional stability and resists self-resonance and thermal effects. Its compact size makes installation easier, even in tight spaces.

FlexMount100 – Universal and Vehicle-Specific Fit
The FlexMount system uses specially designed adaptor rings to fit a wide range of vehicles. This allows the speaker to be mounted in the factory location with an acoustically optimized setup using the matching FlexMount100 ring.

FlexConnect – Simplified Connection
The FlexConnect terminal allows direct connection to the car’s original wiring harness. It maintains secure polarity and reliable contact through vehicle-specific adaptors for quick, safe installation.

Features

• 4” / 100 mm performance midrange speaker for detailed and balanced sound

• 3 Ohm technology for high amplifier output and efficiency

• Cenosphere-coated paper cone for precision and clarity

• 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

• FlexConnect terminal for secure automotive-standard connection

• Shallow neodymium magnet system for compact installation and strong efficiency

• Includes universal FlexMount100 mounting ring

• Compatible with optional FlexMount100 adaptors for optimized factory-fit installation

  Technical data

  Power handling RMS / max.	P	80 / 120 Watts
  Impedance	Z	3 Ω
  DC resistance	Re	3.0 Ω
  Frequency response		120 Hz – 6,000 Hz
  Resonance frequency	Fs	146 Hz
  Mechanical Q factor	Qms	4.49
  Electrical Q factor	Qes	1.02
  Total Q factor	Qts	0.83
  Compliance	Cms	280 µm/N
  Equivalent air volume	Vas	1.1 L
  Force factor	B*I	3.4 Tm
  Sensitivity	SPL	91 dB @ 2.83 V / 1m 87 dB @ 1W / 1m
  Cone area	Sd	53 cm²
  Moving mass	Mms	4.3 g
  Cone material		Paper with Cenosphere coating
  Mechanical resistance	Rms	0.87 kg/s
  Voice coil diameter	ø	25 mm
  Voice coil winding height		4.8 mm
  Max. linear excursion	Xmax	+/- 2.0 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		30 mm / 1.18″
  Features		FlexConnect terminal, powerful push-pull neodymium magnet system, FlexMount100

  Compatibility

  • FlexMount100
  • FlexConnect Inlays