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With notable influence from the sister brand BRAX and our uncompromising high-end philosophy, only the highest quality components, such as the proprietary, handmade UHD (Ultra High Damping) paper cone, are used in the i7 series. manufactured in a particularly complex process, this cone guarantees an optimal frequency- as well as the best possible impulse response for incomparable music enjoyment.

HELIX Ci7 " 6.5 Midwoofer

$758.00Price
  • Technical data

    Power handling RMS / Max. P 150 / 225 Watts
    Impedance  Z 3 Ω
    DC resistance  Re 2.9 Ω
    Frequency response   50 Hz - 3,500 Hz
    Resonance frequency  Fs 60 Hz
    Mechanical Q factor  Qms 3.00
    Electrical Q factor  Qes 0.68
    Total Q factor Qts 0.55
    Compliance Cms 480 µm/N
    Equivalent air volume Vas 11.6 L
    Force factor  B*I 4.8 Tm
    Sensitivity SPL 92 dB @ 2.83 V / 1m
    88 dB @ 1W / 1m
    Cone area  Sd 131 cm²
    Moving mass  Mms 14.8 g
    Cone material   Ultra high damping (UHD) crafted paper cone
    Mechanical resistance  Rms 1.83 kg/s
    Voice coil diameter ø 37 mm
    Voice coil winding height   13.4 mm
    Max. linear excursion  Xmax +/- 3.7 mm
    Outer diameter ø 165 mm / 6.5"
    Installation diameter ø 142 mm / 5.59"
    Installation depth   65.8 mm / 2.59"

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