The CDi Series amplifiers, comprising models CDi 1000, CDi 2000, CDi 4000, and CDi 6000, are engineered for professional installed sound applications, delivering versatile performance with support for 2-, 4-, 8-ohm loads, as well as 70V and 140V outputs. Featuring a switch-mode universal power supply and an intuitive front-panel LCD screen for easy configuration, these rugged, lightweight amplifiers offer onboard digital signal processing, including crossovers, EQ filters, delay, and output limiting, alongside up to 20 user-defined DSP presets.