Ground Zero GZUK 165SQ

6.5″ sound quality midwoofer with GZ aluminum cast basket and aluminum cone 6.5″ sound quality midwoofer 50 mm / 2″ copper voice coil Black anodized aluminum cone Linearized neodymium motor GZ design aluminum cast basket Universal 4 ohms version Incl. GZ designprotection grill Gold plated screw terminal. Specifikation Diameter: 165 mm / 6.50″ Power Handling (RMS/max.): 120 / 180 Watts Impedance: 4 Ohms Efficiency: 87 dB Frequency Response: 40 Hz – 3500 Hz Voice Coil: 50 mm / 2″ copper Membran Layout: anodized aluminum Magnet material: Neodymium Mounting Ø: 144 mm / 5.67″ Mounting Depth: 63 mm / 2.48″ Resonance Frequency (Fs): 54.6 Hz