Now Accepting Benjolin, SoundBox Orders for 2014


The Benjolin is a standalone synthesizer designed by Rob Hordijk from the Netherlands. It contains two oscillators (one LFO and one VCO), a voltage controlled filter and a circuit called a “Rungler”, which allows chaotic cross-modulation possibilities between the different parts of the circuit. Hordijk refers to the Benjolin as a circuit which has been “bent by design.”

These hand-made Macumbista Benjolins have been further customized with a patchbay, which can be used to interface with other modular synthesizers or to setup further control voltage feedback systems within the Benjolin itself, attenuators on the three control voltage input and LEDs displaying the internal state of the Rungler.

Price is EUR 495 (incl. 19% EU VAT) / EUR 416 (shipped outside the EU) plus shipping. These are currently being made-to-order, so expect a wait time of a couple weeks.

Duelling Benjolins from macumbista on Vimeo.


The WolfTone SoundBox contains a children’s toy voice-changer circuit which has been modified to include three switches and six touchpoints which interactively modify the sound, 9V battery/DC jack power, a line-level/headphone output, a backlit transparent speaker and an interior lined with handmade Japanese paper. A detachable condenser microphone provides the input to the circuit, which can be either the performer’s voice or feedback from the speaker.

See below for a demo of the first prototype circuit. I have materials to build four more of these.

Price is EUR 250 (incl. 19% EU VAT) / EUR 210 (shipped outside the EU) plus shipping. These are currently being made-to-order, so expect a wait time of a couple weeks.

WolfToneBox Demo from macumbista on Vimeo.


SoundBoxes are small, portable and battery-powered electro-acoustic instruments. They can create a variety of drone and reverb-type sounds through feedback between a small speaker and a resonant piezo-electric microphone, as seen in this video. Or they can bring out the hidden sounds within found objects as seen in this video.

These SoundBoxes are unique, handmade works of sonic art, made from German cigar boxes dating from the 1930′s to the 1960′s, and feature either transparent and backlit 77mm black speakers or larger, black paper 92mm speakers, a resonant-spring contact mic, a line-out for recording and “circuit-bending” body contacts. They can also simply be used as cigar-box amplifiers for whatever other electronic instruments you might have.

Prices vary from EUR 80-100 (incl 19% VAT), depending on box and speakers, plus shipping from Berlin. Please get in touch for photos of available boxes. These are currently being made-to-order, so expect a wait time of a couple weeks.

Contact “macumbista” AT_THE_DOMAIN “”. Thank you for your kind attention.

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One Response to “Now Accepting Benjolin, SoundBox Orders for 2014”

  1. Jussi Says:

    Hi Derek.
    I bought a SoundBox for some time ago and it has been important part of my setup since then. Are all the new boxes the same size. Somehow it would be tempting to try to work with a bit bigger and thicker box.
    The WolfTone Soundbox looks great.
    I’ll be in Berlin the last week of January. Do you think you would still have some of them left? Will you be then in Berlin?