Helix PR K165.2 - 16.5cm 2-way Compo

HELIX PURE R SERIES: Pure sound, pure excellence

HELIX PURE goes beyond music.
It is an audiovisual experience with a focus on the highest sound quality and uniqueness – created for discerning audiophiles and individualists who make no compromises in their daily lives.
The PURE R-Series represents the pinnacle of our PURE speakers and perfectly combines their essential features: uncompromising sound quality, high-quality materials, and unparalleled aesthetics.

Highest quality and elegant design

Our premium speaker systems are the result of years of development and a relentless pursuit of the highest quality.
Thanks to the use of the highest quality components, they deliver detailed sound reproduction and a dynamic music experience that is second to none.
Here, quality is not only audible, but also tangible.
The timeless, elegant design blends discreetly and harmoniously into the interior and provides aesthetic pleasure without ever being obtrusive.
Through the use of innovative technologies, we achieve acoustic precision that can be felt in every note, as well as a power handling capacity that does not compromise even at demanding levels.

Absolute high-frequency brilliance

Our HELIX PURE R series premium tweeters represent the absolute excellence of PURE speakers.
They are characterized by minimal manufacturing tolerances and the exclusive use of the highest quality materials, such as the coated silk dome.
These ensure that even the finest details are reproduced precisely and provide natural sound reproduction, guaranteeing an incomparable high-frequency experience.
In addition, the sophisticated yet compact design opens up a wide range of mounting
options for universal installation. The anodized aluminum mounting pot with solid mounting ring allows for concealed mounting, while the included grilles in two exclusive designs offer both protection and aesthetic design options.

A sound experience you can feel

The HELIX PURE R series premium mid-bass speakers deliver unique sound quality that you can both hear and feel.
The rigid mica-paper composite cone not only ensures powerful kick bass, but also balanced midrange reproduction that brings your music to life.
A particularly powerful magnet system is used for optimum impulse response, while the stable die-cast aluminum basket guarantees ideal impulse fidelity thanks to its low-turbulence, streamlined design.
In addition, additional ventilation holes in the basket ensure better cooling of the voice coil and enable impressive power handling.

Maximum flexibility – Flex crossover

The separable Flex crossover is not only a visual highlight, but also offers a wide range of connection options thanks to its technical sophistication, making it ideal for integration in vehicles with separate installation locations for high-frequency and low-midrange drivers.
It offers 3-stage high-frequency level adjustment for ideal adaptation to the respective installation position, as well as sophisticated tuning with 12 dB slope for high- and low-midrange drivers.

Features

• 2-way premium speaker system with impressive, detailed sound quality and a powerful, dynamic music experience
• High-performance speakers with innovative technologies for high, distortion-free levels with precise, natural highs and powerful kick bass
• Modern, elegant design for discreet integration into the interior
• Tweeter
• 25 mm premium tweeter with coated silk dome for precise reproduction of high frequencies with the finest details and accurate, natural sound reproduction
• Compact design with versatile mounting options for universal installation
• Includes anodized aluminum mounting pot with sturdy mounting ring for discreet mounting and cover grilles in two exclusive, interchangeable designs
• High-quality aluminum surface-mount enclosure (PR ATP25) available as an option
• Low-midrange driver
• 165 mm premium low-midrange driver with rigid mica-paper composite cone for powerful kick bass and balanced midrange reproduction
• Sturdy die-cast aluminum basket with aerodynamic, flow-optimized design for optimized impulse fidelity
• Basket with additional ventilation holes for better cooling of the voice coil for impressive power handling
• Powerful magnet system for high efficiency and optimized linear magnetic flux
• Includes discreet HELIX grille for ideal protection of the membranes
• Flex crossover
• Split Flex crossover with a wide range of connection options – perfectly suited for installation in vehicles with separate mounting locations for tweeters and mid-woofers
• Carefully tuned high-pass and low-pass filters with 12 dB slope
• 3-stage high-frequency level adjustment for optimal adaptation to the installation position
• Exclusive use of high-quality components for the best sound quality

Technical

• Power handling RMS / Max. P 100 / 200 watts
• Frequency range 40 Hz - 25,000 Hz
• Impedance Z 4 Ω
• Efficiency SPL 91 dB @ 2.83V / 1m
• 88 dB @ 1W / 1m
• Outer diameter
• Tweeter: 37.7 mm
• Low-midrange driver: 166 mm
• Installation diameter
• Tweeter: 37.7 mm
• Mid-woofer: 141 mm
• Installation depth
• Tweeter: 10.6 mm
• Woofer: 66.5 mm
• Dimensions Crossover
• Total: 121 x 107 x 31.2 mm
• Split (each): 62 x 107 x 31.2 mm
• Low-midrange driver
• Impedance Z 4 Ω
• DC resistance Re 3.1 Ω
• Resonance frequency Fs 57 Hz
• Mechanical quality Qms 5.35
• Electrical quality factor Qes 0.63
• Total quality factor Qts 0.57
• Compliance Cms 440 μm/N
• Equivalent volume Vas 10.8 L
• Force factor B*l 6.1 Tm
• Diaphragm 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 width 12 mm
• Max. linear membrane excursion Xmax +/- 3 mm
• Tweeter
• Impedance Z 4 Ω
• Resonance frequency Fs 1400 Hz
• Voice coil diameter ø 25 mm
• Tweeter: Coated silk dome, neodymium magnet, and aluminum housing with two different grilles
• Low-midrange driver: Mica-paper composite cone
• Crossover
• Tweeter: 12 dB high-pass with 3-step high-frequency level adjustment
• Woofer: 12 dB low-pass and blocking circuit

Scope of delivery

• 2 x PR T25-S tweeters
• 2 x PR W165 low-midrange drivers
• 2 x Flex crossover
• 2 x low-midrange speaker protective grilles
• 2 x aluminum tweeter mounting pot
• 2 x OEM tweeter mounting spacers
• 2 x Standard tweeter protective grilles
• 2 x Exclusive HELIX tweeter protective grilles
• 1 x Mounting hardware