Knobcon 2026: Eternal Research Demon Box

We spoke to Jordan from Eternal Research about DemonBox, a triangular electromagnetic instrument and controller. He explained how it reacts to electromagnetic fields from motors, magnets, speakers, phones and other implements, turning those interactions into audio, CV and MIDI.

DemonBox has 33 inductors on its surface, arranged as three channels of 11 in concentric spirals. It has no internal oscillators or tone generators; the audio output comes from disturbances in the electromagnetic field, closer to a wide-field pickup than a synth voice. MIDI notes control instruments such as HydraSynth, while MIDI data can also drive TouchDesigner visuals and DMX lighting via conversion.

The unit includes three external audio inputs, one for each inductor channel. Incoming audio can be mixed with the knobs, and it also affects outgoing MIDI and CV. MIDI runs over USB-C, the unit is powered by 5V USB power, and CV is available for modular hardware. DemonBox is priced at $999, with an in-person Knobcon 26 offer including a free Ferris wheel order.
More Info: https://eternalresearch.com

• BaF 26: Eternal Research Demon Box 26-Jan-26
• Bristronica 25: Eternal Research - Demon Box 27-Sep-25
• Pre-Orders Start For The Demon Box 04-Sep-25
• Superbooth 2025: Eternal Research - Demon Box 09-May-25
• Eternal Research Releases The Demon Box 30-Apr-25