Demon Box Wordmark

Music is everywhere, inhabiting
inanimate objects just waiting to burst
into being.

Countless
everyday devices
emit mysterious,
textured clouds of
electro-magnetic
fields.

Brushed & brushless DC motors 
Electric toothbrushes
Hair dryers
Electric shaver
Tattoo machines
VHS players
Cassette Players
Portable CD players
Cathode ray tubes
CRT televisions
CRT computer monitors
Video arcade machines
Oscilloscopes
Waveform monitors
Spectrum analyzers
Radar display systems
ERM / LRA Motors
Vibrators
Massage guns
Electric hair trimmers
Game controllers
Digital Braille Reader
Smartphones
Electric toothbrush
Magnetic Motors
Drones
Computer cooling fans
Electric skateboards or scooters
CD / DVD drives
EBows
Landscape ferrous
RF EMF emitters
Walkie talkies
Infrared thermometers
Stud finders
Portable FM radios
TV remote controls
Touch resonators
Surface transducers
Piezoelectric buzzers
Peizoelectric microphones
Haptic feedback devices
Miniature dynamic speakers
Universal motors
Electric drills
Angle grinders
Handheld saws 
Heat guns
Handheld vacuum cleaner
Sewing machine
Handheld cooking mixer
Blender / food processor 
Bluetooth Speaker
Baby monitors 
Ultrasound therapy device 
Vagus nerve stimulator 
Radio tower interference
Plasma globe 
Digital pen plating system 
Portable projector 
Taser 
Thermal label printer 
GameBoy 
Electric duster 
Bug zapper 
Tesla Coil
Electronic gimbal rig 
Tuning fork 
Active RFID tags
Smart meters 
Wireless video transmitters 
Fluorescent display clocks 
Electromagnets 
WWVB Signal Generator

The Demon Box Lives

Eternal Research
Demo
@intheshadowofarose
Performance
Robert Dudzic
Video
Eternal Research
Demo
@intheshadowofarose
Performance
Robert Dudzic
Video

How It Works

An electro-
magnetic field is an
invisible butterfly
flapping its wings.

Because EMF are so dynamic, detailed and three-dimensional, a very specific array of sensors are required to properly detect them.

Because EMF are so dynamic, detailed and three-dimensional, a very specific array of sensors are required to properly detect them.

Because EMF are so dynamic, detailed and three-dimensional, a very specific array of sensors are required to properly detect them.

Because EMF are so dynamic, detailed and three-dimensional, a very specific array of sensors are required to properly detect them.

Demon Box Schematic - Mobile

The Demon Box

$999.00
$0.00 $999.00

Estimated shipping is November 2025*

Developed by Eternal Research, the Demon Box transforms the hidden electromagnetic world into sound, signal, light and data. It captures frequencies from everyday electronics like phones, drills, and TVs, then converts them into audio signal, MIDI data, and control voltage. Whether you're conjuring a melismatic drone or triggering synesthetic visuals, the Demon Box is an instrument of sonic discovery, part science and séance.

More Details

Blend Chaos and Control

Inductor Array
33 surface inductors, split across three channels, detect EMF from virtually any object with a motor or magnetic field.

Triphonic and Mono Outputs
Blend all three channels using the triphonic out, or route each channel individually through three dedicated mono outputs.

Aux Inputs
Bring in external audio such as guitar or synth and mix it with EMF textures for rich, layered results.

Per-Channel Controls
Each channel features mix knobs and switches that let you select inductor signal, external audio, or play with a combination of both.

Control Everything

MIDI Out
Send MIDI CC and note data via USB-C or 5-pin DIN to control synths, samplers, sequencers, or visual setups.

CV Out
Each EMF channel generates control voltage, letting you animate your modular rig with the signals of the real world.

Cast Light and Shadow 

The Demon Box goes beyond sound. Use it to control lights and visuals by routing MIDI data to DMX or directly into visual software. Every object becomes an instrument. Every signal becomes a show.

Shipping Info
*Estimated shipping is November 2025, with orders fulfilled in the order received—starting with Kickstarter backers—as each hand-assembled Demon Box is built with precision, which has taken longer than expected, and we appreciate your patience.