About VST plugins VST (Virtual Studio Technology) is a software instruments and effects plug-in format designed by Steinberg. Reason 12.5 and later supports 64-bit VST3 and VST2 (2.4) plugins. VST plugins integrate nicely with the Reason rack: • A VST Plugin is represented by a Plugin Rack Device in the Reason rack. • Cables can be connected on the rear panels of the Plugin Rack Devices, just like on the internal rack devices. • CV signals can be routed like on the internal rack devices. • Plugin Rack Devices are combinable with other Plugin Rack Devices, Rack Extensions and internal devices (see “The Combinator” chapter). • Panel parameters are automatable and remotable. VST compatibility in Reason • Reason 12.5 and later supports 64-bit VST3 and 64-bit VST2 (2.4) plugins. • Both Windows and Mac VSTs are supported. Multitimbrality in VSTs is currently not supported - only one channel per VST can be played back at a time. If you are using a multitimbral VST it will only receive on MIDI Channel 1. Reason does not support VSTs that output MIDI. VSTs are NOT supported in Reason Rack Plugin!