Ground Zero GZIF 6501FX 67.87 EUR Available BUY Stock: Article Number: GZIF 6501FX Share Information Reviews 16,5 cm / 6.5″ Flat 2-Way Coax Speaker extra flat only 44 mm / 1.73″ 4 ohm 70 / 110 W, 60 Hz - 20 KHz Coated paper cone, Resonance free steel basket 13 mm / 0.51 Mylar tweeter Design-Grill.