Stereo Triggered Sampler (STS)

£415.00 (£345.83 ex VAT)

High fidelity, 2-channel Voltage Controlled Stereo Sample Recorder and Playback Module

Out of stock

Join the waitlist to be emailed when this product becomes available

SKU: stereo-triggered-sampler Categories: ,


The 4ms Stereo Triggered Sampler is a high fidelity, two-channel stereo sample recorder and playback module. The STS can record high quality stereo files, while simultaneously playing two different stereo files. A maximum of 600 samples can be loaded from the removable/swappable microSD card, in a variety of formats up to 96kHz/32-bit/stereo WAV. All sample parameters (1V/oct pitch, sample file selection, length, and start position) are CV controllable.

Key Features:

  • Two independent playback channels
  • Intuitive bank/color organization system– no need to rename your .wav files
    • Record new samples directly to a bank
    • Or, simply drag your folders of sound files onto the SD card: each folder will become a bank
    • Folders starting with a color name will be loaded into that named bank (example “Blue – Frooty Loops” will load into the Blue bank)
  • Up to 600 samples can be active in banks at one time (10 samples per bank)
  • Maximum file size for playback or record: 4GB per file (over 6 hours per file at 44.1kHz/16b/stereo)
  • Ships with a 32GB SD card, loaded with over 200 high quality samples from musicians such as Richard Devine, Wobbly, Moor Mother, Robert Aiki Aubrey Lowe, Joseph Pailo, Russell E.L Butler, Hugo Paris & Marc Kate, and more…
  • Extremely quiet, low noise and low jitter design
  • Stereo mode: Two stereo files are mixed together and played at once through the L and R output jacks (L+L and R+R)
  • Mono mode: each file is mixed down to mono and output through the channel’s output jack (L+R and L+R)
  • Each channel has controls for:
    • Sample CV and knob: select which sample (1-10) within the channel’s bank
    • 1V/oct CV and Pitch knob: playback pitch (-4 to +5 octave range)
    • Start Pos CV and knob: position in the sample to begin playback (loop start point)
    • Length CV and knob: playback time (loop end point)
      • Length at max: entire file is played
      • Length >50%: 200ms – 5s of the sample is played (beginning at the Start Position)
      • Length <50%: Percussive decay envelope is applied to the playback (attack-only envelope if playing Reverse)
      • Length <1%: Tiny grains are played (can be used to sweep through sample file data manually)
    • Reverse button and trigger jack: toggles forward/backwards
    • Bank button: selects channel’s bank (holding Bank and turning the Sample knobs allows for fast selection of bank)
  • Recording channel:
    • Record stereo audio into any bank and sample slot
    • REC button or a trigger REC jack starts and stops recording
    • Files are never deleted, but only the most recent take will be automatically assigned to the current sample slot (the Edit features allow you to manually browse all the recordings, and assign them to banks and sample slots)
    • Recording can be disarmed to prevent accidental recordings
    • 44.1kHz/16-bit default recording quality, optionally select 24-bit
  • SD Card is hot-swappable: no power-down required to change SD cards. Samples that are pre-loaded into memory can continue playing while card is swapped.
  • As new features are developed, firmware can be updated by playing an audio file into the STS
  • 20HP Eurorack module


Width: 20hp

Depth: 25mm

Power 145mA @ +12v  / 39mA @ -12v