The OV8E © Professional Loudspeakers Double 18 inch O2 extreme high output bandpass horn loaded designed subwoofer for extended bass configurations, large venues and outdoor events where extreme power is needed. This cabinet is build to last for touring applications in and outdoor. OV8E © Professional Loudspeakers is proud to present the O2. The O2 is build with 8 handle bars to get the best grip and prepared for installing 4 wheels on the back of the cabinet with M8 bolds. On two sides of the O2 are M20 plates to set up in-fill or out-full cabinets. The O2 has a front input and output as well as on the backside of the cabinet. This way the subwoofer is easy to use in any application ( subwoofer design ) on site. Factory settings for DSP are available when using the subwoofer in combination with other OV8E products. The O2 is build from 18mm birch plywood and includes a heavy duty metal grill for protection.