Atelier Macumba Demo Night

Posted in Announcement on October 30th, 2014 by admin

As part of the Lange Nacht der Bilder Lichtenberg 2014, Juan Carlos Duarte, Darsha Hewitt, and I will host an open studio from 20-00h on Friday 07 NOV 2014 at the Atelier Macumba.

Drop by to try out several of the SoundBoxes, Benjolins and custom modular synthesizer systems I have built, and sip a little fine bourbon while you are at it!

The instruments:

Live sets by Seth Zahn + Matthew Burnett, Juan Duarte and Derek Holzer, a demo of the Wurlitzer Sideman tube drum machine by Darsha Hewitt, a live Benjolin+snaredrum set by Andi Stecher, and a very reasonably-priced selection of 10 American whiskeys for your tasting pleasure by Pure of Taste the Doom/Slowlands fame.

There will be many other exhibitions, events and open studios going on that night as well here, see full program here:

Atelier Macumba, Room 2.31, Eingang B, HB55 Kunstfabrik Herzbergstrasse 55 Berlin-Lichtenberg.

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Apokalypsegerät 2013

Posted in Documentation on October 16th, 2014 by admin

I just realized that, although it was built more than one year ago, I still have not documented the Apokalypsegerät machine I created for Andreas Catjar and Markus Öhrn‘s theater productions, and which I play in Bis Zum Tod. I was probably waiting to edit some videos for it, but my video backlog is twenty miles long at this point. So here we go….. Please note there are some slight differences in panel layouts (and a couple extra functions added) between the proposal images and the finished system.


* Analog Modular Synthesizer with four Voltage Controlled Oscillators, four switchable Voltage Controlled Filters/Amplifiers, four Output channels and onstage lighting
* Optimized for the creation of apocalyptic doom drones


* Rough and Fine manual Tuning Controls
* Manual- and Voltage-Controlled Skew adjusts shape of the waveform
* Linear, Exponential and 1 Volt/Octave Frequency Modulation
* Sync input resets waveform
* Square Wave output
* Switchable Sine or Triangle Wave output
* Low Frequency or High Frequency Oscillator modes
* Circuit design by Thomas Henry, circuit layout by Bugbrand
* Two Dual XR-2206 VCO modules present in system


* Each of the four independent gates is switchable between Voltage Controlled Low Pass Filter, Voltage Controlled Amplifier or “Both” mode
* Used for Manual- or Voltage-Control over both amplitude and spectrum of audio signal
* High resonance allows generation of percussive sounds as well
* Circuit design by Don Buchla, circuit layout by Thomas White
* One Quad Resonant Low Pass Gate 292 module present in system


* Each of the four outputs converts unshielded banana-jack to shielded 6,3mm audio jack
* Attenuators used to reduce modular synthesizer voltage level (10 Volts peak-to-peak) to line-level audio (3,5 Volts peak-to-peak)
* Female XLR connection provided for gooseneck LED lamp
* One Quad Output module present in system

I would love to do more custom systems like this, please contact me via the CONTACT link or at the email address MACUMBISTA at-the-domain GMAIL dot COM for more information.

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Steve J. Holzer 1950-2014

Posted in Announcement on October 2nd, 2014 by admin

26 SEPT 2014. 02:57AM. Peacefully, at home, with family. Small Irish wake. “Take a deep breath and jump” was his greatest advice to me. So I did. Steve Holzer made the greatest jump of all that night. Have a good trip, Dad.