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 efficient speakers and subwoofers for daily and SPL use. During the development, GROUND ZERO focused especially on natural and dynamic audio reproduction of digitally compressed music. Apart from some powerful amplifiers, the line contains extremely small amplifiers for limited-space environments.

Representing the entry-level of GROUND ZERO, the IRIDIUM line offers a lot of useful features and an amazing performance. The range contains a variety of affordable amplifiers, speakers, and subwoofers for daily use and for SPL purposes. These are available as single drivers for custom-built applications as well as in loaded passive and active enclosures.