This new title features three vintage synthesizers, three physical model engines and hundreds of other sounds. It is a great addition to anyone's collection who is looking for quality soft synths! Library of plug-ins that can be used with Unity Session, Unity DS-1, Unity AS-1 or stand alone. Unity Synth Expander 1 can also be used as a plug-in with either Pro Tools, Logic, Digital Performer, Sonar, or Cubase.