Doepfer A-135-5

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Doepfer A-135-5

Doepfer

A-135-5

4.5 Expert Rating

Product Info

Article Number: 582316
Brand: Doepfer
Model: A-135-5
Price: $214.50

* Prices may vary. Check retailer for current pricing and availability.

The A-135-5 is a really clever module for anyone serious about building a modular system. It's a compact, versatile mixer with built-in sub-octave capabilities, which is fantastic for thickening sounds and creating evolving textures. If you’re looking for a clean, functional mixer with some extra utility, this is a solid choice.

Product Description

  • Doepfer A-135-5
  • Eurorack Module
  • Polyphonic mixer and sub-octave generator
  • 3 Channels (A
  • C) each with 4 inputs for polyphonic oscillators such as Doepfer A-111-4 (article no. #435434#)
  • Level control
  • mute switch and VCA with CV input and attenuator per channel
  • Square sub-octaves are generated from the 4 signal inputs of channel A and normalised to the inputs of channel B
  • Four group outputs and a sum output
  • Suitable for audio signals and control voltages
  • Power requirement: 50mA (+12V) / 40mA (-12V)
  • Width: 10 U
  • Depth: 55 mm
PROS
  • • Excellent channel isolation minimizes crosstalk, crucial for complex patching.
  • • Sub-octave generation adds unique textures without extra modules.
  • • Flexible VCA/attenuator per channel enables dynamic signal shaping.
  • • Robust Doepfer build quality ensures years of reliable operation.
CONS
  • • Limited input count per channel might restrict polyphonic possibilities.
  • • Normalization can introduce unexpected signal flow complexities for beginners.
  • • Depth, while standard, can be restrictive in shallow Eurorack cases.

Product Video

Key Features

Channels 3
Type Polyphonic Mixer & Sub-Octave Generator
HP Width 10
Depth 55 mm
Power Draw 50mA (+12V) / 40mA (-12V)
Connections 12 Inputs, 4 Group Outputs, 1 Sum Output

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Frequently Asked Questions

It generates square wave sub-octaves from the A channel inputs, creating a simple, raw sub-bass. The attenuators allow you to tame it or use it for more experimental textures.
Absolutely! While designed with the A-111-4 in mind, it works with any Eurorack oscillator or signal source – just be mindful of level matching.
Normalization is a modular concept that takes some getting used to. It’s powerful, but initially it's best to understand the signal flow visually and experiment to avoid unwanted routing.

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