Helix Compose CB K165.2-S3 – 6.5″ Component Set

£179.99

Description

Description

HELIX CB K165.2-S3

HELIX COMPOSE. The perfect speaker for any composition.

A 2-way component speaker system designed to deliver clear sound performance and efficient power output. Built for both reliability and flexibility, it supports easy installation while maintaining premium sound detail and dynamic range.

Smart design and efficiency

The HELIX CB K165.2-S3 uses efficient 3-Ohm technology, ensuring compatibility with most amplifiers while providing strong sound output and better performance. The system combines lightweight materials and precise engineering for consistent audio clarity and response.

Deep and controlled bass

The midbass driver uses a polypropylene cone for a balance of stiffness and low distortion. Its steel basket includes additional ventilation holes for effective cooling, while a powerful magnet ensures accurate response and improved control over lower frequencies.

Clean and accurate highs

The silk dome tweeter delivers smooth high-frequency performance with a neodymium magnet for stable magnetic flow and detail in treble response. Its compact housing allows flexible mounting positions to suit different vehicle setups.

Optimized crossover

The crossover includes a 4-level tweeter adjustment and built-in protection for safe operation. Its compact size supports installation in small spaces while maintaining clear separation between low and high frequencies.

FlexMount20 – adaptable installation

The optional FlexMount20 adaptor rings allow this speaker system to fit various vehicles while maintaining acoustic optimization in factory mounting positions.


Features

  • 2-way speaker kit combining high efficiency with clear sound

  • 3-Ohm impedance for improved amplifier performance

  • Compact design suited for limited installation spaces


Tweeter

  • 0.75” / 20 mm silk dome tweeter for detailed treble

  • Neodymium magnet for high magnetic stability

  • Compact housing with multiple installation options

  • Flush and angle mounting pods included

  • Compatible with optional FlexMount20 adaptors


Midbass

  • 6.5” / 165 mm polypropylene cone for accurate sound reproduction

  • Reinforced steel basket with ventilation for better heat management

  • Strong magnet for precise impulse control

  • Polyurethane dustcap for improved midrange response


Crossover

  • Compact, high-quality crossover for easy integration

  • 4-stage tweeter level adjustment with protection circuit

  • 12 dB slope for the tweeter ensuring balanced frequency division

Technical data

Power handling RMS / Max.  P 80 / 120 Watts
Frequency response 60 Hz – 22,000 Hz
Impedance Z 3 Ω
Sensitivity  SPL 92 dB @ 2.83V / 1m
88 dB @ 1W / 1m
Outer diameter ø Tweeter: 32.0 mm / 1.26”
Midbass: 166.0 mm / 6.54”
Installation diameter ø Tweeter: 32.0 mm / 1.26”
Midbass: 143.0 mm / 5.63”
Installation depth  Tweeter: 9.8 mm / 0.39”
Midbass: 61.4 mm / 2.42”
Dimensions crossover 103.3 x 50.4 x 25.0 mm /
4.07 x 1.98 x 0.98”
 
Midbass
Impedance Z 3 Ω
DC resistance Re 3.0 Ω
Resonance frequency Fs 62 Hz
Mechanical Q factor Qms 4.50
Electrical Q factor Qes 0.90
Total Q factor Qts 0.75
Compliance Cms 520 μm/N
Equivalent air volume Vas 14.5 L
Force factor B*l 4.1 Tm
Cone area Sd 141 cm2
Moving mass Mms 13.2 g
Mechanical resistance Rms 1.10 kg/s
Voice coil diameter  ø 25 mm
Voice coil winding height   8.9 mm
Max. linear excursion Xmax +/- 2.5 mm
Tweeter
Impedance Z 4 Ω
Resonance frequency Fs 2000 Hz
Voice coil diameter ø 20 mm
Features
Tweeter Ultra compact, silk dome, neodymium magnet and FlexMount20
Midbass Injected polypropylene cone
Crossover Tweeter: 12 dB highpass, protection and level adjustment

Compatibility

  • FlexMount20