Ground Zero GZHW 20XSPL-D2

8″ high quality SPL subwoofer with alumiunum cast basket and reinforced paper cone8″ high quality SPL subwooferKlippel® optimizedReinforced paper coneLong stroke compound surroundSolid aluminum cast basket63 mm / 2.5″ copper voice coil2-layer Polycot spiderIMPP dust cap with 3D structure logo 8″ subwoofer 2x2 ohm voice coils 2.5″ copper voice coil Mounting diameter 187 mm Mounting depth 145 mm Aluminium cast basket Klippel optimized triple magnets Cone Reinforced paper Power Handling 700 W RMS, 1500 W SPL Power Sensitivity 80 dB Xmax 40 mm Fs 38.3 Hz Qts 0.381 Vas 4.77 L.