Doepfer

Doepfer A-157 Trigger Sequencer Subsystem

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$500.00

In Stock
A-157 is a trigger sequencer subsystem that is used to generate up to eight trigger signals controlled by an 8x16 LED/button matrix (some customers call it "Miniature Schaltwerk" as it is based on the same matrix as the no longer available Schaltwerk).

The subsystem contains three modules:

A-157-1 8x16 Trigger Matrix
A-157-2 Trigger Output
A-157-3 Control Input

The LED/button matrix module A-157-1 is the core of the subsystem. It is used to set or reset the trigger event on each of the 16 steps of each of the 8 rows. The trigger output module A-157-2 outputs the 8 trigger signals and has an LED display for each trigger.A-157-3 offers only the functions clock, start/stop and reset (both with manual controls and control inputs). For this standard control unit the tempo (clock) is the same for all 8 rows, the direction is forward and the length of each row is 16.

A-157 is a trigger sequencer subsystem that is used to generate up to eight trigger signals controlled by an 8x16 LED/button matrix (some customers call it "Miniature Schaltwerk" as it...

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Width: 52HP
Max Depth: 45mm
Power: 350mA@ +12V , 20mA@ -12V , 0mA@ +5V

Features

  • Eight tracks of up to 16 steps each
  • Step programming using matrix grid, or real-time programming
  • Shifting selected tracks step-by-step
  • Invert and copy functions for quick track creation
  • Individual number of steps for each track for creating polyrhythms or odd time signatures
  • Four different playback modes for each track (forward / backwards / pendulum / random)
  • Track mute
  • Each active step puts out a +12V trigger via A-157-2 trigger output module. In the final version, trigger levels will be programmable individually for each step.
  • Start / stop / reset / clock (shifting step-by-step) functions can be controlled manually or remotely, using the A-157-3 control input module