Sundown Audio Nightshade NS-Series NS6 10" 3000W Subwoofer NS v.6

3,000-Watt RMS Dual 1 or 2 ohm voice coils Optional carbon cone/dustcap available Custom tooled basket Custom-tooled ultra-linear spider packs Extended shorting ring Eight-layer voice coil Custom tooled basket Cast aluminum cooling ring Ultra-linear spider pack Unique air exchanging system forces hot air out and cool air in Aluminum vent ring Ultra-linear Mega Roll V2 surround  Features: The Nightshade 3,000-watt Neodymium sub is engineered to deliver incredibly powerful low end, with an extremely linear excursion and next-level thermal management. It features an eight-layer voice coil for excellent power handling and an extended shorting ring to minimize distortion and deliver a smooth, highly accurate sound at extreme SPL levels. Specifications: NS V.6 10 T/S SPECS NS V.6 10″ D1 NS V.6 10″ D2 RE (Ohms) 1.8759 3.606 FS (Hz) 44.386 43.7789 VAS (L) 6.2193 6.4844 Qes 0.5400 0.3963 Qms 5.4793 4.2627 Qts 0.4916 0.3626 Le (mH) 1.6541 3.2481 BL (NA) 19.5266