Ground Zero Hydrogen GZHW 30XSPL-D2 Sub 30cm 12 Inch SPL Subwoofer 1500w RMS. GZHW 30XSPL-D230 cm / 12? High quality SPL subwoofer12? High quality SPL subwoofer with alumiunum cast basket and reinforced paper cone 12? High quality SPL subwoofer Klippel® optimized Reinforced paper cone Long stroke U-surround Solid aluminum cast basket 75 mm / 3? Copper voice coil 2-layer Polycot spider IMPP dust cap with 3D structure logo. 30 cm / 12? High quality SPL subwoofer. 12? High quality SPL subwoofer with alumiunum cast basket and reinforced paper cone. 12? High quality SPL subwoofer. Solid aluminum cast basket. 75 mm / 3? Copper voice coil. IMPP dust cap with 3D structure logo. Model High-Quality SPL subwoofer. Diameter 30 cm / 12? Impedance 2x 2 Ohms. Power recommendation 1000 – 3000 Watts. Voice coil 75 mm / 3? Copper. Excursion (Xmax) 45 mm / 1.77? Mounting Ø 284 mm / 11.18? Mounting depth 198 mm / 7.80? Resonance frequency (Fs) 39.1 Hz. Overall quality (Qts) 0.56. Air volume (Vas) 17.6 L / 0.62 cu. To be eligible for a return, your item must be unused and in the same condition that you received it, and it must be in the original packaging. By visiting our website and/or purchasing something from us, you are deemed to have accepted these terms and conditions. A downloadable software product or a software, voucher codes, gift cards or gift wrapping service. Highly recommend this vendor. This item is exactly what I was after at a brilliant price. Great communication and the item was well packaged. Thank you very much. Great stuff – thanks! Ordered Friday 1.30 arrived Saturday 2.30 amazing service well packaged and beat everyone else on price. Item arrived on time, well packaged and exactly as described. Delivered on time and packaged suitable for courier. Product box protected well by extra packing. Good price, good service. Item came as described at a great price!