The Torso S4 is a sculpting sampler designed to capture and transform sounds, merging tape-era workflows with modern granular techniques. It features four parallel stereo tracks, each with a chain of five audio devices including samplers, live granular processing, morphing resonators, and various effects. It includes a deep modulation system with four modulators per track, 4GB of internal memory, and can function as a class-compliant USB audio interface.