What is poly chain?
The various Evolver models have a special MIDI implementation that allows 2 or more Evolvers to be connected for expanded polyphony. Any Evolver can be poly chained to another, regardless of model. The monophonic Evolvers do have hotter (that is, higher level) outputs than the polyphonic Evolvers, so you will want to use a mixer to balance the levels. When poly chaining Poly Evolvers only (a keyboard and one or more racks), a mixer is unnecessary, as the Poly Evolver Rack has a special Mix Input for that purpose.
