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Product ID: A-157

Doepfer A-157 Trigger Sequencer

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With v1.5 firmware

A-157 is a trigger sequencer subsystem that is used to generate up to eight trigger signals controlled by a 8x16 LED/button matrix.

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. We will probably add a mute button or mute switch for each row that allows to turn the trigger output off/on independent for each row.
In the final version the modules A-157-1 and A-157-2 will be probably merged into one module only because both modules are essential for the subsystem.

A-157 features currently implemented:

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 nal 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 

Additional Information

Warranty: 1 year
Module Format Eurorack
Function(s) Sequencer
Width (HP) 50
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