The DBX DriveRack PA Complete Loudspeaker Management System is a 1U rack mountable multi-effects processor that provides 6 channels of digital signal processing. It features 2 sounds, graphic equalization, compression/limiting, and XLR input/output ports. The system is designed to optimize and protect loudspeaker performance in a variety of applications. The DriveRack PA is made by dbx in the United States and does not come with a manufacturer warranty.