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Doepfer A-138D

Module

  • Crossfader / FX insert module for external effect units

Further information

Module Yes
Empty Rack, Or Housing No
Basic System No
Accessories No
13 customer ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4.6 / 5.0
  • handling
  • features
  • sound
  • quality
8 written ratings Read all reviews
Total
handling
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Dieter Doepfer - Modular King!

TerenceB, 14.10.2014
It was Dieter Doepfer who first came up with the Eurorack format now adopted by pretty well all of the world's analog modular bods. Whereas some of the newcomers to the scene produce multifunctional kit laden with a sometimes tiresome "attitude", Doepfer modules remain modest and simple affairs, each one doing one or things and leaving it up to the user how he or she wants to hook them up. The A-138D is also in this style, acting simply as input amplifier or output attenuator. I thought I'd give one a try having read a few interesting remarks on the Muff Wiggler forum (which every analog head reads), and because I have a large collection of interesting stompboxes that I fancied integrating. And the results have been interesting, especially when positioning fuzz and distortions directly after the VCO stage. Results can be hit and miss depending on box you use, the modules you are using and where you patch them in, but this kind of experimentation is par for the course and part of the fun of building your own modular system. I'd call it a successful punt!
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Total
handling
features
sound
quality

Nope..gonna get something else

30.03.2015
Have tried to use this module quite a lot of times as aux/return for distortion pedals, filters, as audio input from my computer and as "pre-amp" for a spring reverb.

With destortion pedals it was very hard to supress feedback. When no audio came in, feedback swelled up horribly.

Using it with a sherman filter, it tended to color the sound too much and creating sudden resonant peaks (probably also the feedback)

While with the spring reverb, the gain was not enough to get the spring sound to a high enough level and be audible along the rest, while not being mostly amplified background noise.

Lastly, somehow the audio coming into the module bleeds through to other modules on the same rail..

Starting to think I got a damaged module..
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Show variations of this product
Doepfer A-138D
(13)
Doepfer A-138D

Module Crossfader / FX insert module for external effect units

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-124 Wasp Filter SE
(17)
Doepfer A-124 Wasp Filter SE

Wasp Filter Special edition, Black front, Yellow knobs

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-110-1
(53)
Doepfer A-110-1
to the product
139 €

Standard VCO for Modular System A-100Module A-110-1 (VCO) is a voltage controlled oscillator. The A-110-1 produces frequencies in a range of about 8 octaves, of which four waveforms are available...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-180-2 Multiples
(45)
Doepfer A-180-2 Multiples

Passive Multi-Port Distributor 8x Interconnected jacks, Sockets are divided into 2x quadruple groups; but can also be modified to an eight-multiple (soldering bridge on the circuit board), Width:...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-140
(43)
Doepfer A-140

ADSR Envelope Generator The module A-140 is a envelope generator and since it delivers control voltages, belongs to the modulation-modules. As soon as the ADSR is triggered at gate-input, it...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-132-3
(19)
Doepfer A-132-3

Module Dual linear/exponential, VCA

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-138b
(40)
Doepfer A-138b

Mixer ModuleModule A-138 is a four-channel mixer that can be used for mixing control voltages as well as for mixing audio signals. A separate attenuator is available for each of the four inputs. In...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-100 LC1 Low Cost Case
Doepfer A-100 LC1 Low Cost Case
to the product
119 €

Doepfer A-100 LC1 Low Cost Case for Eurorack Modules; build-in Power Supply A-100SSB (+12V/380 mA, -12V/380mA); 48 TE Version of the A-100LC3; build-in Bus Board with 8 Module connectors; Housing...

  • Module: No
  • Empty Rack, Or Housing: Yes
  • Basic System: No
  • Accessories: No
Doepfer A-199 Spring Reverb Module
(31)
Doepfer A-199 Spring Reverb Module
to the product
119 €

Spring Reverb ModuleDoepfer A-199 is a spring reverb module, which electronically simulates the reverb effect with the aid of spiral springs. Spring reverb systems have a characteristic sound...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-118 Noise/Random
(37)
Doepfer A-118 Noise/Random

Noise/Random Voltage Generator Module A-118 is a noise and random voltage generator. It produces the following signals: white noise, coloured noise, and random voltage. White and coloured noise can...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-143-2
(18)
Doepfer A-143-2
to the product
211 €

Quad ADSRThe module contains 4 independent ADSR envelope generators. Each sub-module has the controls Attack, Decay, Sustain and Release. With the 3-stage range switch, the desired time range can be...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
Doepfer A-155
(17)
Doepfer A-155
to the product
299 €

Analog and Trigger Sequencer for Modular System A-100 The following functions are available for the two analog rows (rotary knobs): 8 Rotary potentiometers, Scale (stepless knob) on the lower...

  • Module: Yes
  • Empty Rack, Or Housing: No
  • Basic System: No
  • Accessories: No
70 €
Incl. VAT plus 20 € shipping
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Offers include 24% Greek VAT and are valid as long as stocks last. Shipping costs to Greece are 20 EUR, free shipping on orders above 298 EUR. Please click here for international Shipping rates. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany
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