Eternal Research’s Demon Box EMF Instrument/Controller Ready for Preorders

The Demon Box is ready for the world and now on sale for preorders. More than a sonic instrument, this triphonic system is built to transform spatialized EMF into multiple sonorific channels. In other words, you can use any ordinary object, from a power drill to a cell phone, to engage the Demon Box, which turns its electromagnetic field into light and sound.

The Demon Box can be purchased here, with deliveries of units beginning in mid-autumn 2025. With a recently patented triangular design unlike any other instrument on the market, it is the first commercial product from Eternal Research, the company creating the next generation of exploratory audio-visual devices and musical instruments.

A sleek triangle years in development, the Demon Box uses 33 inductors grouped in three triangular channels of 11 inductors to transform EMF. The Demon Box can be used on its own to create unique sounds or it can be incorporated into a larger setup including as an audio-visual controller. The instrument is perfect for sound designers, composers, artists, and other creatives who want to find new ways to conjure and explore sound. It also offers ample opportunity for visual applications like video synthesis, DMX lighting, and coding platforms like Max, Jitter, and TouchDesigner. 

“The Demon Box is a physical manifestation of a bigger idea. It’s an idea in contrast to the idea that all the organizing principles we’ve hitherto devised are music, and all that is not part of that is noise,” explains Eternal Research founder Alexandra Fierra. “Additionally, it’s about the idea of the inverted pyramid, to invert all the previous concepts of music into a new theory. This idea inspired the design, which is now recognized as unique and patented. Our goal is to bridge the gap between science and music, to turn the forces that made the electric guitar and MIDI possible into an instrument for the 21st century.”

Demon Boxes can mesh with nearly any set up, thanks to their comprehensive connectivity: three mono audio ins, three mono audio outs, a triphonic audio output, 3 control voltage outputs, and MIDI out sending CC and note data via a DIN port and USB-C. Each channel comes equipped with parameter controls, enabling you to mix both the EMF channels and external gear to your liking in real time. According to Eternal Research’s head engineer Bryn Nieboer, “Stereo is limited. Three channels allow you to sculpt and navigate with panning, phasing, and effects layering, to create an immersive, triphonic sound that sets the Demon Box apart.”

The Demon Box and other Eternal Research projects will be part of this year’s Knobcon in Chicago on September 5-7, 2025. They will be available for Knobcon attendees to explore at the Eternal Research booth B400. Eternal Research is offering a special discount of $100 off the $999.00 USD original purchase price of The Demon Box that runs September 5- 13, 2025. The offer can be used once per Demon Box transaction with the code DEMON33.