Orthogonal Devices ER-101 Eurorack Sequencer Module (Original)

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Manufacturer: Orthogonal Devices

Category: Keyboards & Synths

*Note that the price is based on when we previously had this product in stock. When placing an order for an item temporarily out of stock, in most cases the price will remain the same, however occasionally the price may be subject to change. If this is the case then we'll tell you straight away and offer a refund.



Orthogonal Devices ER-101 Eurorack Sequencer Module (Original)

Orthogonal Devices ER-101 Eurorack Sequencer Module is a real-time composition, sequencing and automation environment, all in 26HP. It enables you to compose sequences of thousands of steps with variable duration, variable gate length, arbitrary scales, smooth transitions, save/recall device state and much more.

  • 4-track sequencer
  • stepped and smooth voltage transitions
  • each track has 3 outputs: 2 CVs + 1 gate
  • each track has its own adjustable loop points
  • each track contains up to 100 patterns and each pattern can contain up to 100 steps
  • each step can be individually adjusted to have 0-99 clock cycles in duration
  • each gate can be individually adjusted to have 0-99 clock cycles in duration with or without ratcheting
  • configure each track to output gates or triggers
  • configure each track to have its own clock multiplier (1x to 99x)
  • CVs are chosen (indexed) from voltage tables of which there are 2 per track (A & B)
  • 8 built-in and 8 user reference voltage tables for initializing the track tables
  • voltage tables are user-editable and have 100 entries per table
  • voltages between 0.000-8.192V at 2mV increments can be dialed in
  • each voltage table can be configured to use note display or numeric display
  • smoothing can be enabled for individual steps, entire patterns and/or entire tracks
  • smoothed transitions are NOT simply slews but are adjusted to match the current tempo in real-time
  • hold feature (complete double-buffering of device state) allows you to edit-and-commit on the beat while the sequencer is running
  • while in hold mode, committing changes to a running sequence can be either immediate or quantized to the beat
  • reset can be either immediate or quantized to coincide to with the ending of the current track, pattern, or step
  • stores up to 16 snapshots of the state of the entire device
  • arbitrary insert/delete of patterns/steps with clipboard style copy/paste
  • math button allows you to specify a mathematical operation to apply to a step, a pattern or a track.
  • note repeat (aka ratchet) any step
  • shuffle (aka swing) any step
  • expansion port
  • last saved snapshot is loaded automatically on power-up
  • firmware upgradeable via USB
  • expander available: ER-102

Additional Info

Additional Info

  • Width: 26hp
  • Depth: 2cm from the back of the faceplate
  • Current Consumption: (There is a switch on the back that lets you choose the +5V source.)
  • If +5V source is internal REGulator then approx 120mA from +12V.
  • If +5V source is the BUS then approx 95mA from +5V and 25mA from +12V.
  • Digital Inputs: x2 (clock and reset, threshold=2.5V)
  • Digital Outputs: x4 (gates or triggers, LO=0V HI=9.9V)
  • Analog Outputs: x8 (input range: 0-8.192V)
  • Latest Firmware Version: v2.00
  • Max Total # of Patterns: 400 per snapshot
  • Max Total # of Steps: 2000 per snapshot

** Some details might change without notice.

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