The C3 Synth Xpansion Pack presets have been created for all the synths in Caustic 3, there are 176 new presets here covering Synths, Pads, Piano, Ethnic, Dubstep & Synth Bass, Arps, FX, Drums and Organs, suitable for all genres of music but especially dance styles.

There are 16 8BitSynth presets, 20 Bassline presets, 8 Beatbox kits (Dubstep, Dance & Hiphop), 21 FMSynth presets, 21 Modular presets, 10 Organ presets, 21 PadSynths presets, 31 PCMSynth presets, and 28 SubSynth presets.