SubsTractor is created on base of the popular Propellerhead Reason soft synthesizer SubTractor. Subtractor is an analog-type polyphonic synthesizer based on subtractive synthesis, the method used in analog synthesizers. This chapter will go through all parameters of each section of Subtractor. In addition to the parameter descriptions, the chapter also includes a few tips and tricks to help you get the most out of the Subtractor synthesizer. The plug-in contains: OSC section. Filter section. Modulator section. External section. Mixer section.