SynthModules markets unique modules for use in analog modular synthesizers. Their first product, the PSIM-1, is a programmable synthesizer interface module that can be re-programmed using a computer to do many functions.

The company is the commercial face of Brice D. Hornback of Indianapolis, IN. He is a synth builder with a background in computer networking and robotics.

The SynthModules line is built to be physically compatible with Frac-Rack format modules, such as Blacet or PAiA, and electrically compatible with standard modular systems.

In addition to the modular analog components, Synthmodules markets some unusual components, such as the SpeakJet Speech Synthesizer Chip.

Synthmodules warranties their modules for 90 days.