Doepfer A-155 Analog/Trigger Sequencer

Doepfer A-155 Analog/Trigger Sequencer can still be mentioned as one of the most full-featured sequencers in the eurorack world. Gate and trigger out lengths, CV knobs with scale control, Glide function for portamento of sequences... Everything is in front of you! Don't forget to add the A-154 sequencer controller for the control of virtually any parameter of this module! You can also use it in the audio range as a graphic VCO.

€300.00 €250.00

Availability: in 7-9 days

SKU
A-155

Doepfer A-155 Analog/Trigger Sequencer can still be mentioned as one of the most full-featured sequencers in the eurorack world. Gate and trigger out lengths, CV knobs with scale control, Glide function for portamento of sequences... Everything is in front of you! Don't forget to add the A-154 sequencer controller for the control of virtually any parameter of this module! You can also use it in the audio range as a graphic VCO.


Doepfer A-155 Analog/Trigger Sequencer - Features of the analog rows (knobs): 

  • 8 potentiometers (knobs)
  • lower row: Scale (knob), voltage output range 0 ... ~ +6,5V
  • upper row: 1V/2V/4V (octave range switch for exact VCO control), voltage output ranges 0 ...1.0V / 0 ...2.0V / 0 ...4.0V
  • Glide time (knob), same as portamento or slew limiter
  • Glide Control (control input for switching glide on/off)
  • lower row: external inputs for the 8 steps (switched jack sockets), control signals or audio signals may be used as inputs (allowed voltage range -5V...+12V), the knobs of the lower row are working in this case as attenuators


Features of the trigger rows (switches):

  • 4 Trigger/Gate tracks with 2 rows of switches
  • toggle switches of 1-0-1 type (with middle position), which can be used to send a trigger/gate to the track above or below or to send no trigger/gate (middle position)
  • 3 trigger rows (i.e. short pulse for each step set, pulse width corresponds to the pulse width of the clock/step input signal)
  • 1 gate row (i.e. a high signal is applied during the length of the step set)
  • Control inputs and buttons:
  • Step (defines the tempo of the sequence, same as clock or trigger input)
  • Reset (resets all rows to step 1)
  • Start (starts the sequence at the momentary position)
  • Stop (stops the sequence at the momentary position)

Step and Reset are compatible to the MIDI interface A-190, i.e. in combination with the A-190 the A-155 may be synchronized via MIDI. The quantizing module A-156 can be used to quantize the infinite analog voltages coming from A-155 into discrete semitone steps (multiples of 1/12V). Without MIDI interface e.g. a LFO rectangle output can be used to define the tempo of the sequence.

The sequencer controller A-154 adds a lot of new functions to the A-155 (e.g. voltage controlled addressing, forward/backward/pendulum/random mode, voltage control of first and last step, voltage controlled clock and gate length, step skipping, combination of several A-155 in parallel/serial mode and many more).

For more detailed information please look at the English user's manual

More Information
Category Filter Sequencer
Width (HP) 50
Depth (mm) 40
Stock Text in 7-9 days
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