Sundown Audio U-Series 8" v.1 Subwoofer

RMS 600 watts Dual 2 or 4 ohm voice coils Optimized for small ported enclosures Aluminum 2.25” 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 The U Series woofer from Sundown is incredibly versatile, thriving in both competition setups and your daily driver. It features a double-stacked 9” wide ferrite magnet system and a robust top plate. It also incorporates shorting rings within the magnets and pole cap to enhance frequency response, act as a heat sink, and guide airflow. The U Series is equipped with a significantly thicker custom aluminum frame that boasts heat-dissipation ribs. The v.2 motor also includes an extended pole piece to ensure the coil remains controlled even under high stress! Specifications T/S SPECS U 8" D2 U 8" D4 RE (Ohms) 3.8 6.34 FS (Hz) 39.387 41.288 VAS (L) 6.345 6.970 Qes 0.412 0.519 Qms 2.474 2.542 Qts 0.353 0.431 BL (NA) 20.00 21.45 Mms (Grams) 175.340 145.239 Cms (mm/N) 93.125 102.308 Sens (dB @ 1w/1m) 81.6db 81.6db Xmax 18mm 18mm Enclosure Specs Ported Enclosure Size: .65-.75 cu. ft. net Port Area: 9-12 sq. in. Port Tuning: 35Hz Sealed Enclosure Size: .3 cu. ft. net Displacement: .09 cu. ft. Depth: 6.02" Outside Diameter: 8.70" Cutout: 7.3" Physical Dimensions