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he unique "MicroSphere" coating is one of the the main reasons for the unrivaled sonic precision of the new 165 mm / 6.5" high-end mid-woofer GRAPHIC GL6. In a patented process micro ceramic hollow spheres with a diameter of 75 micron are being embedded in a polymer layer and applied to the cone. The coating ensures perfect inner damping without any negative impact on the moving mass. This innovative technology rather increases the stability of the hand-scooped cone, allowing better dynamics and higher sonic definition than ever before.


  • ower RMS / max.  P 100 / 150 Watts
    Impedance  Z 3 Ω
    DC resistance  Re 3.0 Ω
    Frequency response   40 Hz - 4,000 Hz
    Resonance frequency  Fs 52 Hz
    Mechanical Q factor  Qms 6.00
    Electrical Q factor  Qes 0.57
    Total Q factor Qts 0.52
    Compliance Cms 603 μm/N
    Equivalent air volume Vas 16.3 L
    Force factor  B*I 5.2 Tm
    Efficiency 1 W / 1 m SPL 88 dB
    Cone area  Sd 139 cm²
    Moving mass  Mms 15.3 g
    Cone material   paper cone with “MicroSphere” coating consisting of micro ceramic hollow spheres embedded in a polymer layer
    Mechanical resistance  Rms 0.84 kg/s
    Voice coil diameter ø 37 mm
    Voice coil winding height   14 mm
    Max. linear excursion  Xmax +/- 4.0 mm
    Outer diameter ø 166 mm / 6.5"
    Installation diameter ø 142 mm / 5.6"
    Installation depth   68.2 mm / 2.7" 

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