The K-array KA line of power amplifiers are built into a 2U, half-rack, light weight aluminum chassis. Each model is comprised of two or four output channels providing up to eight channels in a standard 2U rack space when mounted together. KA amplifiers feature optical limiters, and protection against over temperature, over current and short circuits. KA series amplifiers have on-board DSP presets specifically optimized for all K-array speaker systems.