Elevator Sound on Instagram Elevator Sound on twitter Elevator Sound on Facebook Elevator Sound on Facebook
  • Filter: Categories

  • Filter: Brands



Free Delivery on UK orders over £99

Terms and conditions apply

Doepfer A-185-2 Eurorack Precision Adder Module

£67.00

Available on back-order

Price Match

Seen it Cheaper? Email Us and we will get back to you. Full details here

(Bear in mind when purchasing from the EU you are viewing Ex-VAT prices in the UK. VAT, handling fees and potential import duties will be due)






Product Info


Module A-185-2 is a precision control voltage adder/buffer. Precision means that the amplification of the inputs without attenuators is exactly 1.00 and is suitable to add control voltages for the pitch control of VCOs (e.g. from keyboard + sequencer 1 + sequencer 2). Summing resistors matched to 0.1% are used to obtain an accuracy of 0.1% for the added voltages.

The module is equipped with four CV inputs: one with attenuator and three without attenuator. Each input is normalled to +1 V (i.e. if no plug is inserted the input contributes 1 V to the sum appearing at the output).

The input with attenuator can be used for common modulations (e.g. from an LFO, ADSR, Theremin, Pitch-Bender) for all VCOs connected to the output. The Lev.1 control is used to adjust the depth of the modulation, the first switch selects the polarity of the modulation. If no signal is connected to the first socket the attenuator works as a (fine) tuning knob because a voltage in the range 0…+1V (right position of the switch) or 0…-1V (left position of the switch) is added to the CV output.

The inputs without attenuators are planned to add control voltages coming out of keyboards, sequencers, Midi-to-CV interfaces, ribbon controllers or other CV sources that follow the 1V/oct standard. For example the CV of a keyboard can be used to transpose the CV coming from a sequencer, or the CV of a slow sequencer can be used to transpose the CV from a fast sequencer.

Each input is equipped with a three-position switch that determines if the corresponding voltage is added (right position), subtracted (left position) or if the input has no effect (center position). If no plug is inserted the corresponding switch works as an octave switch for the lower three sections as the default 1 V are added or subtracted to the output voltage according to the switch position. The first switch can be used to add a variable voltage to the sum output. The variable voltage is adjusted with the Lev.1 control and the knob works then as kind of a (fine) tuning control.

The module is equipped with 4 outputs: three non-invertíng and one inverting ouput. An internal jumper can be used to connect the non-inverted or inverted output to the CV line of the A-100 bus. That way the module can used to control several VCOs that are connected to the same bus board as the A-185-2 (same functionality as A-185-1).

Width: 6 TE / 6 HP / 30.0 mm
Depth: 50 mm (measured from the rear side of the front panel)
Current: +10mA (+12V) / -10mA (-12V)





Free Delivery on UK orders over £99

Terms and conditions apply

© Copyright 2021 Elevator Sound.   |   Privacy Policy   |   Terms and Conditions   |   Site: ATGS