This is Transistor Sound Labs first forray into the eurorack market. The Stepper Acid is based loosely on the TB303 sequencer design with some much needed improvements.

Stepper Acid is made with live performance in mind with on-the-fly programming. In this video Nina shows us exactly how easy it is to create a sequence, copy and paste, detach modes and more.

It stores up to 40 different patterns which can be chained using song modes. A dual microprocessor design is used to ensure tight timing.

At £295 this is a steal.

• Synthfest UK 22: Transistor Sound Lab Stepper Sequencers 10-Oct-22
• 16-step Eurorack Sequencer Module 21-Nov-14