SUBWOOFER GROUND ZERO GZIW 250 250MM

10″ high quality subwoofer with solid 3D HQPP cone 10″ subwoofer Klippel® optimized 3D HQPP cone Long stroke rubber surround Solid aluminum cast basket 50 mm / 2″ copper voice coil Polycot spider IMPP dust cap with 3D structure logo Diameter 25 cm / 10″ Power Handling (RMS) 250 Watts Impedance 4 Ohms Efficiency 87 dB Power recommendation 200 – 300 Watts Voice coil 50 mm / 2″ copper Membran HQPP cone with 3D-structure Max. Excursion (Xmax) 25 mm / 0.98″ Mounting depth 129 mm / 5.08″ Resonance frequency (Fs) 27 Hz Overall quality (Qts) 0.44 Equiv. air volume (Vas) 49.3 L / 1.74 cu.ft.