HELIX PR K165.2 – 2 Way 6.5″ Component Speakers

£429.99

Description

Description

HELIX PR K165.2

HELIX PURE R-series: Flawless sound, pure excellence

The HELIX PURE R-series is designed for listeners who value precision, clarity, and a balanced audio experience. Each component is built with high-grade materials and thoughtful design to provide excellent performance and lasting reliability for vehicle installations.

Premium build and refined design

This speaker system results from advanced acoustic development and precise material engineering. It offers accurate sound reproduction with smooth dynamics, clear tones, and solid power handling. The refined, minimal design fits seamlessly with modern interiors, providing both function and understated elegance.

Detailed and smooth high frequencies

The PURE R-series tweeter delivers clear and natural treble through a coated silk dome that reduces harshness and distortion. The compact design supports flexible mounting options for various vehicles. It includes an anodized aluminum flush-mount housing with a solid mounting ring and interchangeable grilles for both protection and style.

Accurate and powerful midrange performance

The PURE R-series woofer provides a deep, responsive low end and well-defined mids. Its Mica-Paper composite cone ensures rigidity and precision, while the die-cast aluminum basket supports improved airflow for better cooling and reduced distortion. Additional ventilation helps maintain consistent performance at higher power levels. Protective grilles are included.

Flexible crossover design

The separable Flex-Crossover supports versatile installation where tweeters and woofers are mounted separately. It includes a 3-stage tweeter adjustment and uses a 12 dB slope for smooth transition between frequency ranges. High-quality components ensure stable, distortion-free performance.


Features

  • 2-way premium speaker system with detailed, dynamic sound

  • High-performance components for accurate highs and powerful midrange

  • Elegant, minimal design for clean integration into interiors

Tweeter

  • 1” / 25 mm silk-dome tweeter for smooth, precise treble

  • Compact housing with flexible mounting options

  • Includes anodized flush-mount housing, solid mounting ring, and two grille designs

  • Optional PR ATP25 aluminum tweeter pod available

Woofer

  • 6.5″ / 165 mm woofer with Mica-Paper composite cone for deep and controlled bass

  • Aluminum die-cast basket for reduced vibration and improved response

  • Additional ventilation for better coil cooling and stable power handling

  • Strong magnet system for high efficiency

  • Includes protective grilles

Flex-Crossover

  • Separable crossover with flexible connection options

  • 12 dB slope for tweeter and woofer

  • 3-stage tweeter level adjustment

  • Uses high-quality components for consistent signal accuracy

Technical data

Power handling RMS / Max.  P 100 / 200 Watts
Frequency response 40 Hz – 25,000 Hz
Impedance Z 4 Ω
Sensitivity  SPL 91 dB @ 2.83V / 1m
88 dB @ 1W / 1m
Outer diameter
(more data see manual)
ø Tweeter: 37.7 mm / 1.48”
Woofer: 166 mm / 6.54”
Installation diameter
(more data see manual)
ø Tweeter: 37.7 mm / 1.48”
Woofer: 141 mm / 5.55”
Installation depth
(more data see manual)
Tweeter: 10.6 mm / 0.42”
Woofer: 66.5 mm / 2.62”
Dimensions crossover
(more data see manual)
Total: 121 x 107 x 31.2 mm / 4.76 x 4.12 x 1.23”
Separated (each): 62 x 107 x 31.2 mm / 2.44 x 4.12 x 1.23“
 
Woofer
Impedance Z 4 Ω
DC resistance Re 3.1 Ω
Resonance frequency Fs 57 Hz
Mechanical Q factor Qms 5.35
Electrical Q factor Qes 0.63
Total Q factor Qts 0.57
Compliance Cms 440 μm/N
Equivalent air volume Vas 10.8 L
Force factor B*l 6.1 Tm
Cone area Sd 133 cm2
Moving mass Mms 17.9 g
Mechanical resistance Rms 1.19 kg/s
Voice coil diameter  ø 25 mm
Voice coil winding height   12 mm
Max. linear excursion Xmax +/- 3 mm
Tweeter
Impedance Z 4 Ω
Resonance frequency Fs 1400 Hz
Voice coil diameter ø 25 mm
Features
Tweeter Coated silk dome, neodymium magnet and aluminum housing with two different grilles
Woofer Mica-Paper composite cone
Crossover Tweeter: 12 dB highpass with 3-stage tweeter level adjustment
Woofer: 12 dB lowpass and bandstop filter