The DBX 4800 DriveRack Loudspeaker Management System is a powerful PA system processor with 4 channels and 8 outputs. It is perfect for any professional audio equipment setup and comes equipped with presets for added convenience. The Drive Rack is not included, but it is compatible with a variety of cables and other accessories that are not mentioned or pictured. This system is ideal for musicians and other professionals who require a reliable and versatile PA system processor. Its brand, dbx, is known for producing high-quality audio equipment, and this model, the 4800, is no exception. With its easy-to-use interface and powerful features, it is perfect for any setup, whether you are a small music venue or a large concert hall.