The Lexicon PCM 70 is a 16-bit digital multi-effect processor introduced in 1985. Its frequency response is 20 Hz to 15 kHz.
Software version 2.0 included the most coveted effect presets, including "Tiled Room." Version 3.01 introduced a new algorithm (Inverse Room) but got rid of many of the presets from version 2.0. This page contains both the v2.0 and v3.1 patch banks for the PCM 70 in SysEx format.
The following technicians specialize in servicing vintage Lexicon effects units: