Helix Compose CB C130.2-S3 – 5.25″ Coaxial Speakers

ELIX CB C130.2-S3

A high-quality 2-way coaxial speaker system designed to deliver clear sound, powerful bass, and efficient performance. Compact and well-engineered, it provides an ideal balance between precision, output, and installation convenience — perfectly suited for a wide range of vehicles.

Overview

The CB C130.2-S3 represents the BASIC series within the HELIX COMPOSE range, offering the key elements needed for an enhanced in-car audio experience. Built with durable materials and practical design, it performs reliably with HELIX and MATCH amplifiers, ensuring consistent sound quality and efficient power handling.

High Efficiency

The system uses 3 Ohm technology to achieve higher efficiency and increased sound pressure while maintaining compatibility with most amplifiers. This allows the speakers to deliver a strong, dynamic performance without excessive power consumption.

Powerful Midbass Performance

The 5.25” midbass driver combines light weight and rigidity through a polypropylene diaphragm, delivering balanced and accurate sound. The sturdy steel basket includes additional ventilation for cooling the voice coil, while the powerful magnet system ensures responsive, detailed low- and mid-frequency output. Its compact structure makes it easy to fit even in tight spaces.

Clear High Frequencies

The 0.75” silk dome tweeter reproduces crisp and natural highs with impressive dynamics. A neodymium magnet provides high magnetic control and efficiency, ensuring a balanced and distortion-free treble response across a wide frequency range.

Crossover

An integrated 6 dB slope crossover manages the frequency distribution between the tweeter and midbass, providing a smooth transition and maintaining tonal harmony across all ranges.

Key Features

• 2-way coaxial speaker system for efficient and accurate sound reproduction

• 3 Ohm impedance for improved power handling

• Compact, durable design for easy installation

• Optimized airflow for better heat dissipation

• Compatible with HELIX and MATCH amplifiers

Tweeter

• 0.75” / 20 mm silk dome

• High-efficiency neodymium magnet

Midbass

• 5.25” / 130 mm polypropylene cone

• Ventilated steel basket for cooling

• Polyurethane dustcap for smooth frequency response

Crossover

• Integrated with 6 dB slope
  
  Technical data

  Power handling RMS / Max.	P	70 / 105 Watts
  Frequency response		80 Hz – 22,000 Hz
  Impedance	Z	3 Ω
  Sensitivity	SPL	90 dB @ 2.83V / 1m 86 dB @ 1W / 1m
  Outer diameter	ø	130.0 mm / 5.12”
  Installation diameter	ø	118.0 mm / 4.65”
  Installation depth		51.4 mm / 2.02”
  Midrange
  Impedance	Z	3 Ω
  DC resistance	Re	3.0 Ω
  Resonance frequency	Fs	92 Hz
  Mechanical Q factor	Qms	4.28
  Electrical Q factor	Qes	1.18
  Total Q factor	Qts	0.92
  Compliance	Cms	303 μm/N
  Equivalent air volume	Vas	4.0 L
  Force factor	B*l	3.8 Tm
  Cone area	Sd	97 cm2
  Moving mass	Mms	9.7 g
  Mechanical resistance	Rms	1.33 kg/s
  Voice coil diameter	ø	25 mm
  Voice coil winding height		8.9 mm
  Max. linear excursion	Xmax	+/- 2.5 mm
  Tweeter
  Voice coil diameter	ø	20 mm
  Features
  Tweeter		Silk dome and neodymium magnet
  Midbass		Injected polypropylene cone
  Crossover		Integrated, 6 dB highpass