Sundown Audio u18″v2 1750 watts

Description Black Aluminum 3” voice coil former for superior heat dissipation High Temperature Round-Wire ALU voice coil with high-temp black adhesive Double stitched surround Heavy duty cast baskets – all new, custom-tooled Spring loaded terminals accept up to 8 gauge Stitched-on double-XL tinsel leads Solid pole with vent channels and aluminum shorting ring cap Rear drilled gap-venting Innovative high-velocity cast aluminum vented frame spacer ring Magnet ID shorting ring Top-Plate Cooling Channels Cast Aluminum surround bolt-on rings Optimized for small ported or bandpass enclosures U-15 Sealed Enclosure 2.0 cu ft Ported Enclosure 3.0 cu ft Recommended Tuning 35Hz Recommended Port Area 48 sq in Displacement 0.24 cu ft Depth 9.05″ Outside Diameter 15.59″ Cut-Out 14.01″