The Myryad MDP 500 (often cataloged or referred to in inventory sheets as the HDP-500) is a high-end 7.1-channel digital home theater preamplifier-processor. Originally launched in early 2000 for $2,595, it was engineered in the UK during Myryad's flagship "M Series" era. It is highly regarded by audiophiles for delivering a pure analog bypass circuit alongside its high-performance digital processing paths.