The Lexicon PCM Series, introduced in 1980 with the PCM 41, set new standards for digital reverb, delay and multi-effects processing. Built on Lexicon’s pioneering algorithm design, the series evolved through iconic models including the PCM 70, PCM 80, PCM 90, PCM 91, and PCM 96, each expanding on processing power, modulation depth, and parameter control. Known for their lush reverbs, modulation richness, and musical depth, PCM processors became fixtures in professional studios and live rigs worldwide. Offering MIDI integration, advanced editing, and pristine 20- to 24-bit conversion in later models, the Lexicon PCM Series remains one of the most respected and influential families of digital effects ever created.