digital reverb The Lexicon PCM 70 Digital Effects Processor gives you access to the same astonishing digital effects used by the worldÕs top artists and studios Ð all in a compact single-space rack mount unit. The Lexicon PCM 70 offers more than 40 digital effects and reverb programs, including chorus and echo, resonant chords, multiband delays, rich chamber, rich plate, and concert hall. Add to these the 50 programs you can create and store in user registers, and you have instant access to more than 90 programs. If creative control is what you are after, more than 70 different parameter types can be edited to produce just the sound you need. Everything from delay times to feedback, filters, panning, and early reflections.