Doepfer A-138p

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Doepfer A-138p

Doepfer

A-138p

4.6 Expert Rating

Product Info

Article Number: 399259
Brand: Doepfer
Model: A-138p
Price: $170.50

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

The A-138p is a no-frills, reliable performance mixer perfect for Eurorack users needing a clean, flexible way to combine signals. It's ideal for those wanting precise gain staging and panning control without complex routing – especially useful for live performance or detailed sound design where subtle adjustments matter.

Product Description

  • Doepfer A-138p
  • Performance Mixer - 4-Way Input Module
  • Control knobs per channel: Gain
  • output volume
  • pan and AUX
  • as well as mute switch and level LED
  • Several input modules can be cascaded
  • Width: 16 HP
  • Depth: 40 mm
  • Power requirements: 0 mA

*Note:* The A-138p module requires an A-138o module for operation; the A-138p module can not be used alone. (A-138o available under article nr #399260#)

PROS
  • • Solid build quality typical of Doepfer’s German engineering.
  • • Individual channel gain controls offer precise level matching.
  • • Flexible panning capabilities for stereo width manipulation.
  • • Cascading design allows for expanding mixer capacity.
CONS
  • • Requires the A-138o output module, adding to the overall expense.
  • • 16HP width can be restrictive in smaller modular systems.
  • • Limited to four input channels; not suitable for large-scale mixing.

Product Video

Key Features

Channels 4
Type Performance Mixer
HP Width 16
Depth 40 mm
Power Draw 0 mA
Connections Multiple input/output jacks per channel, AUX input, cascade connectors

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Frequently Asked Questions

Doepfer designed it this way to keep the core mixer section compact, offloading the power and output amplification to the separate A-138o module.
The AUX input is a versatile send, allowing you to route a signal from all channels to an external effect or processing unit, returning it to the mix.
It's a true gain stage, allowing you to boost or attenuate signals beyond the standard unity gain, providing more flexibility in level matching and signal shaping.

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