S-4 sculpting sampler
The S-4 is a sculpting sampler designed to capture and transform sounds. Merging tape-era workflows with cutting-edge technology, the S-4 redefines sound mangling by providing a futuristic platform for crafting unique soundscapes and compositions, using samples and real-time audio processing.
The biggest update yet
S-4 OS 2.0 is out now! The biggest update to the S-4 since its launch – fulfilling our original vision for the instrument. The update features a full rewrite of the core engine and unlocks new features such as macro controls, scenes, varispeed recording, unlimited sample playback, and new dynamic modulation options.
Perform
Create global macros to control multiple parameters at once. Map any parameter to eight performance knobs and four punch-in effect buttons for expressive changes with a single gesture.
Scene
Save and instantly launch parameter and sample snapshots. Capture full machine states, build variations, and swap samples on the fly — with up to 128 scenes per project, controllable on-device or via MIDI Program Change.
Temp
Temp brings performance functionality with temporary control of all parameters. When temp is enabled, S-4 saves the initial state and snaps back instantly when released.
Disc
A new playback device that streams audio directly from internal storage. Perfect for long loops, stems, and field recordings, limited only by storage capacity
Follow
A new modulation source: an envelope follower that uses track output or input signals to modulate parameters in real time.
Enhancements
New improvements include copy, enhanced Tape device with varispeed recording and a much more
Get the update now
S-4 OS 2.0 is available now as a free download for all S-4 owners. Head to our support page to download the latest firmware, read the change log and explore the updated user guide.
Use cases
The S-4 is a versatile powerhouse, capable of serving as an effects processor, transformative sound designer, tape machine, live looper, classic sample player, or textural synthesizer.
Tape machine
Capture your surroundings. Use S-4 as a transformative four-track tape machine.
Effect processor
Manipulate live audio, and add color and textures to your beats, melodies, and sounds
Midi controlled sampler
Hook up a MIDI keyboard or sequencer and use S-4 as a powerful textural synthesizer and sample player.
Audio engine
Push the creative boundaries and transform audio into uncharted depths. S-4 has four parallel stereo tracks, each of which contains a chain of five audio devices tailored to cover specific sonic areas and applications. Create everything from glittering textures to broken soundscapes or evolving synth sounds.
Together, the devices form a playful toolbox for sculpting sample material and live audio.
Sound examples
All sound examples are created with the Factory sample bank shipping with the S-4.
Sarah Belle Reid
I’ve been using the S-4 in a lot of my compositions as a way to transform simple sounds into complex and dynamic sound worlds. The MIDI implementation has made it easy to integrate into my workflow and create a really interactive instrument, which I love. I’m looking forward to getting deeper into everything it has to offer.
Oora
The S-4 is the instrument I dreamt of for a long time. You can start from any kind of sound and end up with some evolving and organic texture that is even playable with a keyboard and the full process is intuitive and musical. It is a no-brainer for sound designers and live performers.
Büşra Kayıkçı
I was searching for an instrument exactly like S4 that would allow me to create new textures and layers with my Ney flute on stage. The S4 made it easy for me to become familiar with it quickly thanks to its user-friendly interface and clear menu. It provides all the effects I require without the need for any additional equipment. I am thrilled about the possibilities it offers to produce soundscapes.
Modulation system
Animate and bring life to any parameter using the rich and unique modulation system. Each track has four configurable modulators that can be mapped to any parameter with unlimited mapping destinations. It is even possible to do cross-modulation between modulators. Choose between a range of different modulators from complex LFOs, and generative sequencers to envelopes.
Capture your surroundings
Utilize the built-in microphone to record sounds, sample and loop your external gear with the stereo line input, resample the internal tracks, or effortlessly load samples from the S-4’s flash memory or an external drive.
Versatile powerhouse
The S-4 is designed with durable RGB buttons offering tactile feedback and a high-quality 3.5-inch LCD display ensuring all the visual feedback you need. It features USB connectivity for seamless connection to class-compliant devices and effortless file transfers to and from your laptop. Moreover, it can function as an audio interface when you require a simplified setup.
Technical specifications
Audio engine
4x stereo tracks with a 5-stage signal chain:
- MATERIAL Play samples from internal memory, record and overdub. Includes 8-voice polyphonic sampler with MIDI control.
- GRANULAR Shape grains with contour, size, and pitch. Create anything from ambient clouds to glitchy textures.
- FILTER 48-band resonant filter bank with classic models and morphing modes.
- COLOR Dual-band distortion, bit reduction, compression, and noise.
- SPACE Stereo delay and reverb with freeze and multiple delay types.
User Interface
High-resolution LCD color display, 3.5 inch
21 tactile RGB buttons
9 high-quality endless encoders
Hardware
- Internal Memory: 4 GB (expandable via USB)
- Audio Processing: 24-bit / 48kHz stereo
- USB Audio Interface: Class compliant, 10 in / 10 out
Physical
Matte black aluminum casing
Dimensions: 242 x 156 x 39 mm (9.5” x 6.1” x 1.5”)
Weight: 820g (1.8 lbs)
features
4 modulators per track – LFOs, envelopes, random, and envelope followers can modulate any parameter for dynamic, evolving patches.
PERFORM page with 12 macros Map any parameters to 8 sliders and 4 punch-in FX buttons for expressive live control.
128 scenes Save and trigger full parameter and sample snapshots. MIDI Program Change supported.
Mixer 4-channel stereo mixer with DJ-style filters and master compressor.
I/O
- Inputs: 2x 6.3 mm (1/4”) jack
- Outputs: 2x 6.3 mm (1/4”) jack, 3.5 mm TRS headphone
- MIDI: 3.5 mm TRS (Type A) in/out
- Sync: 3.5 mm analog sync in/out
- USB-C Port
Included in the box:
- Power Supply: External (DC 12V/2A)
- MIDI Adapter: 3.5 mm jack to 5-pin DIN
IDRA
S-4 is an instrument that allows you to manipulate sound in a unique way with always the potentially infinite level of creative freedom and sonic discovery. Both in the studio and during live performances, it has become part of my instrumentation.The textures and sound quality that come out of it are undoubtedly a winning weapon for soundscapes and ambient music.
CTRLS
Torso Electronics gear is some of the most musical I’ve had my hands on. The design, controlled randomization and performance features all make for an unobstructed and smooth production experience.
Chiara Luzzana
As a soundtrack composer and sound designer, I am dedicated to working with the pure noise that life offers. The Torso S-4 sampler has become the absolute center of my creative production, allowing me to craft breathtaking soundscapes with a single gesture. Its unparalleled sound quality and powerful granular sampling engine define my musical signature with infinite precision and care. I truly can't imagine my work without it.
S-4 accessories
