The entry into the HELIX sound world
Enter the HELIX sound world with our PURE F speaker series. The powerful F-Series gets the maximum power out of your amplifier thanks to its 3 Ohms technology. In combination with the exceptional sound performance with powerful bass, clear mids and detailed highs, an exciting sound experience is bound to occur.

Simple integration
The best sound isn’t any good if installation causes problems. The PURE F coaxial loudspeakers demonstrate with their sophisticated design how to do it the right way. The low installation depths of the woofers take into account the increasingly limited space available in modern vehicles.

Cool design – noble materials
The timeless and stylish design of the F loudspeaker series with the dynamic Space-Line styling of the woofer cone is by no means an end in itself, but rather the result of the use of high-quality materials. The carbon fibres embedded in the polypropylene cone of the woofer optimize the midrange reproduction, whereas the lightweight mylar dome of the tweeter provides impulsive, clear highs.

Features
High sound quality with deep bass, clear mids and detailed highs
Powerful speaker system with high efficiency thanks to 3 Ohms technology
Low installation depths for trouble-free installation in almost all vehicles
Elegant HELIX design with black matt cone finish and black shiny Space Line styling
Tweeter
0.52” / 13 mm mylar dome and neodymium magnet for brilliant and clear treble response
Woofer
6.5” / 165 mm woofer with rigid cone made of injected polypropylene with embedded carbon fibers provides essential stiffness with a high inner damping
Powerful magnet system with optimum control for powerful and clear depths
Individual HELIX basket with additional ventilation holes for better voice coil cooling and high power handling
Crossover
Integrated with 6 dB slope

6.5″ 2-way coaxial speakers
Power RMS / Max. 60 / 120 Watts
Frequency response 60 Hz – 22,000 Hz
Impedance 3 Ω
Sensitivity 92.5 dB @ 2.83V / 1m
88.5 dB @ 1W / 1m
Cone material TW: Mylar
M: –
W: Injected polypropylene with embedded carbon fibers
Crossover Integrated, 6 dB slope
Outer diameter 165 mm / 6.50″
Installation diameter 142 mm / 5.59″
Installation depth 58 mm / 2.30″