GZRW 6XSPL – Radioactive 6.5? SPL subwoofer. 6.5? High quality SPL subwoofer with reinforced paper cone. 6.5? High quality SPL subwoofer. Long stroke compound surround. Solid aluminum cast basket. 50 mm / 2? Copper voice coil. IMPP dust cap with 3D structure logo. 16.5 cm / 6.50. 350 / 700 Watts. 250 – 700 Watts. 50 mm / 2 copper. 22 mm / 0.866. 147 mm / 5.79. 99 mm / 3.90. 2.2 L / 0.078 cu.