SUBWOOFER GROUND ZERO GZIW 165 165MM

6.5″ high quality subwoofer with solid 3D HQPP cone 6.5″ subwoofer Klippel® optimized 3D HQPP cone Long stroke rubber surround Solid aluminum cast basket 38 mm / 1.5″ copper voice coil Polycot spider IMPP dust cap with 3D structure logo Diameter 16.5 cm / 6.50″ Power Handling (RMS) 100 Watts Impedance 4 Ohms Efficiency 85.5 dB Power recommendation 60 – 150 Watts Voice coil 38 mm / 1.5″ copper Membran HQPP cone with 3D-structure Max. Excursion (Xmax) 10 mm / 0.39″ Mounting Ø 147 mm / 5.79″ Resonance frequency (Fs) 41 Hz Overall quality (Qts) 0.41 Equiv. air volume (Vas) 9.1 L / 0.32 cu.ft.