. Subtractor Analogue Synthesizer - Subtractor is a polyphonic synthesizer device based on subtractive synthesis, which is the method used in classic, analog synthesizers. Its two oscillators can produce basic waveforms such as square, sawtooth, triangle, and sine. Additional waveforms based on samples can also be generated. The Subtractor device can be completely automated from a controlling device, such as Reason's sequencer.
. Thor Polysonic Synthesizer - The Thor device simulates a semi-modular synthesizer. Six filter and oscillator slots let you load up three different filter modules and three different oscillator modules simultaneously, allowing you to dial in novel sounds. A modulation matrix gives you complete control over your signal flow, letting you modulate anything within Thor. Thor also has a simulation of an analog style step sequencer with more than one twist.
. Malstrom Graintable Synthesizer - The Malstrom device creates its sounds using Graintable technology. This technology is a cross between granular synthesis and wavetable synthesis. Malstrom features many filtering and modulation options. It is capable of real-time waveform stretching, spectral modulation, and wavetable sweeping. Malstrom comes with a wide range of Graintables.
. NN-19 Digital Sampler - The NN-19 device is Reason's original sampler, introduced in the first version. All of the controls on the NN-19 can be fully automated from a controlling device. There are two ways of getting sound out of NN19: load a single wav/aiff sample or load a sampler patch. Loading a single wav/aiff file will instantly transpose the audio across the keyboard by speeding up or slowing down the playback of the sample. The NN19 can import and play mono or stereo files.
. NN-XT Advanced Sampler - The NN-XT device is an advanced sampler with many features. It is designed for working with multiple samples which can be assigned to different keys on the keyboard. It can be used for both sound design and instrument emulation. Useful features include alternate sample playback, auto-pitch detection, keyboard zones with individual parameters, and tempo syncable LFOs.