I am selling a lightly used (never installed, only on demo board) Ground Zero GZUC 650SQ-II component set. It is a great sounding component set with the ability to render low midbass frequency and keep things warm and smooth on the top end, think Morel-type sound signature. Shipping is on me within the USA.


  • 2-way component speaker system
  • WFWC® cone with wooven wooden fiber
  • Rubber surround
  • Euro-DIN basket
  • Solid aluminum cast basket
  • Universal 4 ohms version
  • 25 mm / 1″ silk dome tweeter
  • Ferrite motor
  • Variable 12 dB/oct crossover
  • Incl. protection grill
    Diameter165 mm / 6.5"
    Belastbarkeit (RMS/max.)130 / 210 Watts
    Impedanz4 Ohms
    Effizienz90 dB
    Frequency Response40 Hz – 24 kHz
    Tweeter25 mm / 1" silk dome
    MidwooferWFWC® cone
    Einbautiefe66 mm
    CrossoverVariable 2-way
    Crossover frequency2800 Hz