Endorphin.es Ground Control Eurorack Performance Sequencer


Ground Control is a sequencer for CV/Gate signals as well as MIDI and USB-MIDI devices. It’s the best of two worlds: It takes an alternative approach by using the 101 step input for melodical sequencing. That empowers you to create melodies on the fly with easier polymetrical input so you can concentrate on the creative part with less menu diving. Programming beats is easy as it ever was—typical X0X-style! Functions: Clock Generator , Controller , CV Modulation , MIDI , Power , Sequencer
Height: 3U
Width: 42hp

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Manufacturer: Endorphin.esCategories: Equipment, Eurorack, Sequencing

Ground Control is a 42 hp Eurorack performance sequencer.

The sequencer has 4 tracks: three melodic tracks and a  drum track consisting of 8 drum triggers and modulation/accent output. There are also dedicated mute buttons for each track, MIDI and USB-MIDI I/O, external CV and a 2-octave piano-style keyboard.

The keyboard serves for playing the melodies as well as entering the menus – in that method the module eliminates tedious menu diving.

Each track can contain 24 patterns, which can be played separately or chained together in any order. All those tracks are organized into 24 projects. The number 24 is associated to the 24 letters of the Latin alphabet.

Ground Control features very stable internal analog and MIDI clocks preserving low jitter operation, which is crucial for tight sequencing.

There is no typical 808/909-style sequencing. Instead the patterns are entered either in 101-style step input, live recording and can be adjusted using the 303-style editor.


  • 2 octaves of keyboard, play sequences and grooves on the fly or use external USB/MIDI gear for DAW integration or to control external MIDI gear
  • arbitrary, up to 64 steps per pattern, 24 patterns per track, 24 projects
  • dedicated mute bus unquantized/quantized to pattern length
  • 4 tracks: drum track with 8 triggers and modulation and 3 melodic CV/Gate tracks – Velocity and CC is recorded from external MIDI.
  • three record modes: step input with step editing, live recording and step editor
  • arpeggiator, roller, patterns queue, live notes removal, slides, ties/rests, quick transpose
  • works also as a power supply for your modular system (same as Shuttle Control) or can be powered by a bus board like any other module

  • Manufacturer: Endorphin.es
  • TE / HP: 42
  • Depth (mm): 30
  • + 12 V (mA): 135
  • - 12 V (mA): 25

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