Torso Electronics S4 Sculpting Sampler. The Torso Electronics S4 is a powerful, performance-focused stereo sampler built for sonic exploration and real-time sound transformation. Bridging the tactile creativity of tape-era workflows with modern digital processing, the S4 offers a unique platform for crafting evolving soundscapes, intricate compositions, and spontaneous performances. With its hands-on interface, deep modulation system, and newly upgraded OS 2.0, the S4 sets a new standard in hardware sampling. Features: Four Parallel Stereo Tracks: Each track runs an independent signal chain with samplers, granular processors, morphing resonators, and advanced effects. Extensive Modulation System: Up to 20 modulators per track including complex LFOs, envelopes, generative tools, and the new Follow device for envelope following based on audio amplitude. Live Sampling and Processing: Capture sounds via the stereo line input or built-in microphone, then instantly mangle, stretch, and transform them in real time. Disc Device: Stream long-form audio directly from internal storage with virtually unlimited sample length—ideal for full stems, field recordings, or extended loops. Enhanced Tape Workflow: The Tape engine now supports varispeed recording, loop overdubbing, and time warping for deeper performance capabilities. New in OS 2.0 Macro Controls: Map any parameter to one of eight performance knobs or four punch-in buttons for sweeping, expressive changes. Scene Management: Instantly switch between full project states or build live arrangements with up to 128 scenes per project, now MIDI-controllable. Temp Mode: Experiment freely during performance—when released, the system snaps back to its original state. Workflow Enhancements: Improved UI, copy/paste for tracks/devices/scenes, upgraded Tape device, and refined modulation routing. New Devices and Rewritten Engine: OS 2.0 introduces a complete engine overhaul for better performance and expanded creative capabilities. Audio Engine 4 stereo tracks with independent audio devices Polyphonic sampler and live granular processor Morphing resonator with 48-band filter bank Bit crusher, overdrive, compressor Combined reverb and delay with pitch-shifting and shimmer Modulation 4 modulators per device (20 per track) Modulate any parameter, including newly added performance macros Modulator types: Complex LFOs, Envelopes, Generative Sequencers, Envelope Follower Connectivity & I/O Built-in microphone and stereo line input 2x line outputs, headphone output MIDI In/Out, analog sync In/Out USB-C with class-compliant audio interface support Wi-Fi with Ableton Link support Expandable I/O via USB audio interfaces Hardware Quad-core 1.5 GHz processor 4 GB onboard flash memory (sample pool) 24-bit / 48 kHz audio in/out High-resolution 3.5” color LCD 21 RGB buttons and 9 endless encoders Matte black aluminum enclosure Dimensions: 242 × 156 × 39 mm Weight: 820g Why Upgrade to OS 2.0? OS 2.0 is the most significant update yet, fulfilling the S4’s vision as a live sound-sculpting instrument. With groundbreaking features like macro performance control, disk streaming, scene switching, and dynamic modulation tools, the S4 becomes even more expressive, flexible, and stage-ready. Free for all S4 owners, OS 2.0 is available now at the Torso Electronics support page.
