The PD-M90X was the first CD player in the Elite line to feature interchangableCD cartridges for single CD or six CD capability..  It was introduced in 1988. and was produced for two  years.

Features including multi memory, auto fader, random play, program play, time fade, level output control, headphone jack and its volume control, direct disc and direct track select, fully functional remote control, and optical and coaxial digital outputs.