current country:
In Europe: no
cookie for EU user select:
Elevator Sound Europe on Instagram Elevator Sound Europe on twitter Elevator Sound Europe on Facebook Elevator Sound Europe on Facebook
  • Filter: Categories

  • Filter: Brands

You're currently browsing the Elevator Sound EU site.

switch to the U.K site >


Free Delivery for Mainland Spain orders over €99

Terms and conditions apply

Doepfer A-156V Eurorack Dual Quantizer Module

149.00 inc. VAT

123.14 ex. VAT

In stock

Bear in mind prices on the site are initially shown including Spanish VAT (21%).

After entering your shipping address at checkout prices on the site will update to show the correct VAT amount due to us based on your location. If purchasing from outside the EU, VAT, handling fees, and import duties will potentially be due on delivery.





Product Info


Module A-156 is a Dual Control Voltage Quantizer. A quantizer converts a continous control voltage in the range 0…+10V into a stepped output voltage in the same voltage range (i.e. only certain voltages occur). Normally 1/12 V steps are used to obtain semitone steps. Quantizer 2 of the A-156 allows has more sophisticated quantizing modes like major scale (i.e. only voltages corresponding to the major scale), minor scale, major chord, minor chord, fundamental+fifth and addition of seventh or sixth when chords are selected. Only those voltages appear at the CV output which comply with the selection rule (e.g. minor chord with seventh). The mode setting of quantizer 2 is done with 3 switches (1-0-1 type with middle position). From the factory quantizer 1 is working in the semitone mode. But there is a jumper (J1) on the pc board that can be changed so that even quantizer 1 uses the same scale as quantizer 2. If the jumper J1 is in the lower position (factory setting) the positions of the toggle switches affect only the lower quantizer and the upper quantizer is working in the semitone mode. In the upper position of J1 the positions of the three toggle switches are also valid for the upper quantizer.

For each quantizer the following in/outputs are available:

Control voltage input (CV In): The input for the contiuous voltage to be quantized
Control voltage output (CV Out): The output of the quantized voltage
Trigger input (Trig.In): If this jack is left open the quantizer is working permanently. If a rectangle voltage is applied quantisation happens only at the rising edge of the signal (e.g. from an LFO or MIDI-to-Sync interface). Thus the quantizing can be synchronized with other events.
Trigger output (Trig.Out): Whenever a quantisation happens (i.e. a new voltage is generated at the CV Out) a positive pulse occurs at this output. It may be used to trigger an envelope generator (ADSR) or for triggering other modules (sequential switch A-151, trigger divider/sequencer A-160/161, trigger delay A-162, …). If none of these functions are used the jack is left open.
On top of that the A-156 is provided with a common transpose CV input having an additive effect on both quantizers. This input is quantized in semitone steps. A typical application is the transposition of a sequence generated by the A-155 by a second control voltage (e.g. coming from the MIDI-CV interface A-190).

Typical applications:

Quantizing the CV sequence generated by an A-155 (semitone, onyl major scale, only minor scale and so on)
quantizing the voltage coming from the Trautonium Manual / Ribbon Controller A-198, Theremin A-178 or Light-to-CV module A-179 to get accurate semitones or major/minor scale tones
arpeggio-like effects with LFO, random, noise, envelope generators as CV sources (for negative or symmetrical voltages an offset must be added, e.g. with the offset/attenuator module A-129-3, to obtain positive voltages for the A-156 input).
Specs:

Breite/Width: 8 TE / 8 HP / 40.3 mm
Tiefe/Depth: 55 mm (gemessen ab der Rückseite der Frontplatte / measured from the rear side of the front panel)
Strombedarf/Current: +50mA (+12V) / -10mA (-12V)





Free Delivery for Mainland Spain orders over €99

Terms and conditions apply

© Copyright 2024 Elevator Sound Europe.   |   Privacy Policy   |   Terms and Conditions   |   Site: ATGS