Ground Zero GZHW 10SPL-D2 FLAT

10″ high quality flat SPL subwoofer Klippel® optimized Sandwich paper cone Durable U-shape rubber surround Solid aluminum cast basket 63 mm / 2.5″ copper voice coil 4-layer copper voice coil Push terminal Enclosure recommendation: Vented: 17 Liter netto / 0.60 cu.ft. net Port 1 x 70 mm / 1 x 2.76” port length* 300 mm / 11.81” frequency 39 Hz Sealed (minimum) 15 Liter netto / 0.53 cu.ft. net NOTE! Works from 9 liters in a sealed case! Tekniska data Model High-Quality Flat SPL Subwoofer Diameter 25 cm / 10″ Power Handling (RMS/SPL.) 600 / 1000 Watts Impedance 2x 2 Ohms Efficiency 85 dB Power Recommendation 400 – 1000 Watts Voice Coil 63 mm / 2.5″ Copper Max. Excursion (Xmax) 29 mm / 1.14″ Mounting Ø 238 mm / 9.37″ Mounting Depth 103 mm / 4.06″ Resonance Frequency (Fs) 35.5 Hz Overall Qaulity (Qts) 0.434 Equiv. Air Volume (Vas) 19.7 L / 0.70 cu.ft..