Transistor Sounds Labs Intros Stepper Acid Step Sequencer


Nina Richards & Zoë Blade of Transistor Sounds Labs have introduced Stepper Acid – a digitally-controlled 16-step sequencer for Eurorack modular synthesizers.

They say it is “Designed by and for musicians, Stepper Acid was born out of our need for a modern step-sequencer.”

Here’s a video intro:

Here’s an extended demo:


  • 16-step sequencer, with adjustable pattern length
  • Adjustable analogue slide
  • Song mode for pattern chaining
  • Stores up to 40 patterns
  • Detach mode for playing one pattern while entering another
  • 0-5V range CV (5 octaves)
  • Gate and accent output. 5V or 12V selectable
  • Variable swing function
  • Dual microcontroller design
  • Adjustable clock sync input and output. Includes: 24PPQN (Sync24), 48PPQN, 96PPQN and 4PPQN (one note per pulse

Stepper Acid is available for £295.00. See the Transistor Sounds Lab site for details.

12 thoughts on “Transistor Sounds Labs Intros Stepper Acid Step Sequencer

  1. I was lucky enough to see a demo of this over the Summer. It’s a great module, there aren’t many step sequencers as good as this out there. Best of luck with the release!

        1. The Audio Damage Sequencer 1 is the Elektron sequencer in Eurorack format. This is most definitely the 303 sequencer.

          Elektron’s sequencers are like halfway between a 303 sequencer and an analog sequencer (due to parameter-locking, hold a step and turn a knob). As far as hardware sequencers go, they’re not all that similar.

  2. Brilliant. Like a cross between the acidlab euro sequencer and the metropolis. Im pleased to see some ladies in the biz too. Keep it up 🙂

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