Sundown Audio U-6.5SW-D2 6.5" 400W RMS Dual 2-Ohm Voice Coil DVC Car Subwoofer

BRAND NEWSUNDOWN AUDIO U-6.5SW" D26.5-Inch 400 Watts RMS Dual 2-Ohm Voice Coil DVC Car Audio SubwooferKey Features: RMS 400 watts Dual 2-Ohm Voice Coil Optimized for small ported enclosures Aluminum 1.75” voice coil former for superior heat dissipation High-temperature copper voice coil Double stitched surround Heavy-duty cast basket Spring-loaded terminals accept up to 8-gauge wire Stitched-on heavy-duty tinsel leads Solid pole with vent channels and aluminum shorting ring cap Rear gap-venting Top-Plate Cooling Channels T/S Specs: RE (Ohms): 4.0586 FS (Hz): 41.9533 VAS (L): 2.9053 Qes: 0.5238 Qms: 8.5834 Qts: 0.4937 Le (mH): 4.0112 BL (NA): 16.7428 Mms (Grams): 137.2546 Cms (uM/N): 104.8528 Sens (dB @ 1w/1m): 77.8706 Xmax: 19mm Enclosure Specs: Ported Enclosure  - Size: .25-.35 cuft net  - Port Area: 4-5 sqin  - Port Tuning: 35hz -40hz Sealed Enclosure  - Size: 0.125-0.2 cuft net  - Displacement: .04 cu. ft.  Depth: 5.71" Outside Diameter: 7.17" Cutout: 5.94"