U-8 D4 - Sundown Audio 8 600W RMS Dual 4-Ohm U Series Subwoofer. Sundown Audio U-8 D4 8 600W RMS Dual 4-Ohm U-8 Series Subwoofer. RMS Power = 600 watts. Voice Coil Configuration: Dual 4-ohm.
Solid Pole piece with chamfered edges for increased air-powered voice coil cooling. Black Aluminum 2 voice coil former for superior heat dissipation.
High-Temperature copper voice coil wire. Stitched-On Tinsel Leads to prevent fatigue and failure. High strength stamped steel frame. Top Mount Depth: 6.80.Recommended Ported Box: 0.75-1.0. Sundown U-8 D4 T/S Parameters. 5.4104 mH (at 1 kHz). 165.1000 mm (6.5 in). 21408.3884 mm^2 (33.1831 in^2).