Helix Pure series High-End 2-way standalone kit.

The midbasses in this series feature a paper-composite cone that provides a decent kick while maintaining excellent sound quality.

The trebles are made of really high-quality silk calottes for which aluminium mounting pods ( PR ATP25 ) are available as an option.

The stylish ″Flex-Crossover″ split filters can be split in two, with separate filters for the treble and midbass, making it easier to position the split filter.

In addition to its outstanding sound characteristics, the PR K165.2 also impresses with its stylish design. In particular, the high quality components and the optional aluminium cabinet ( PR ATP25 ) for the tweeter make this system a real eye-candy.

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

(for 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



Scope of delivery

2 x Tweeter PR T25-S

2 x Woofer PR W165

2 x Flex-Crossover

2 x Woofer grille

2 x Tweeter aluminium flush mount housing

2 x Tweeter OEM spacer

2 x Standard tweeter grille

2 x Exclusive HELIX tweeter grille

1 x Mounting material