Doepfer A-178 Theremin

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Doepfer A-178 Theremin

Doepfer

A-178 Theremin

4.8 Expert Rating

Product Info

Article Number: 192268
Brand: Doepfer
Model: A-178 Theremin
Price: $108.90

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

The Doepfer A-178 is a surprisingly capable and affordable entry point into theremin-style control within a modular environment. It's fantastic for experimental sound design and adding a unique, gestural element to your patches—especially if you're already comfortable with modular synthesis and want to explore unusual modulation sources. It's a real workhorse for those wanting a simple, reliable theremin solution.

Product Description

  • Doepfer A-178 Theremin
  • Theremin Module
  • Produces variable control voltage when hand is moved around the antenna
  • Range approx. 30 cm
  • Maximum output voltage: 10V
  • Euro rack format
  • Power requirements: 60 MA (+12 V) / 20 mA -12 V)
  • Width: 8 HP / 40.3 mm
  • Depth: 40 mm (measured from the rear of the front panel)
PROS
  • • Excellent value for a functional, compact theremin module
  • • Doepfer’s renowned build quality ensures reliable operation
  • • Provides a usable 10V output range for predictable CV control
  • • Small footprint (8HP) makes it ideal for space-constrained racks
CONS
  • • Limited range (30cm) requires close proximity for playing
  • • Basic design lacks advanced features like pitch stabilization
  • • Output voltage might need attenuation depending on modular system

Product Video

Key Features

Controls Hand proximity to antenna
Type Theremin Module
HP Width 8 HP
Depth 40 mm
Power Draw 60 mA (+12V) / 20 mA (-12V)
CV Outputs Single CV output

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Frequently Asked Questions

The A-178 is a module, so it's much smaller and produces a CV signal, unlike a standalone which generates audio. You'll need a VCO to make sound with it.
While limited, the 30cm range can still offer expressive control, but it requires precise hand movements and a closer playing style than a full-sized theremin.
Absolutely! The CV output is standard, so you can route it to oscillators, filters, effects – anything that accepts a control voltage.

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