Sundown Audio Xv3 18 inch Dual 2 ohm Subwoofer X Series(2000 watts) Matrix The F4 is an exact

The F4 is an exact duplicate of the very popular NXL-400

18” / 120 x 250 x 30mm Weight  382g / 13

00"/350mm Heatsink Width inch/mm 9

while still performing well in both sealed and ported enclosures

Ground Zero GZHW 16SPL specs justify the price

Sundown Audio Xv3 18 inch Dual 2 ohm Subwoofer X Series(2000 watts) Matrix The F4 is an exactThe X v. 3 series is the entry into the Sundown Audio ultra high excursion suspension and frame designs. They all feature our custom tooled and patented frames (US Patent Numbers D691596, D691597, D691598, and D741841). We mate these new platforms to a triple stacked 225mm (8. 86) diameter motor structure featuring a hyper extended pole and extreme clearances (allowing up to 4 p p travel before mechanical bottom). This motor drives a 3 diameter 4