Proline X Performance Optimized Enclosures for Ground Zero Radioactive / Iridium

Custom-made to fit Ground Zero Radioactive and Iridium Series Take your Ground Zero subwoofers up a notch with the Proline X enclosures built to maximize your Ground Zero Radioactive or Iridium series subwoofer performance. These enclosures are built to spec, making sure each enclosure has the right airspace for your subwoofer. All of these enclosures are ported, and carpeted with grey trunk liner.  These enclosures are Ground Zero branded to match the subwoofers.    Why Proline X? Proline X relies on over 30 years of industry experience and leadership to create high-quality subwoofer enclosures. Based in Northern California as a subsidiary of Audio Intensity, Proline X products are American-Made and a veteran employer.Enclosures are CAD optimized, precision CNC cut, and assembled by hand with stringent quality control throughout assembly to completion. You won't find better boxes for the price anywhere.   Why Ground Zero? The RADIOACTIVE line offers a wide range of exceptional highly