Enjoy Electronics - ELFO

Another device with an intriguing interface from Italian makers Enjoy Electronics has arrived — this time it's about trying to get a new angle on the humble LFO. The ELFO offers touch-based modulation control for Eurorack in a way that we've probably not seen before. It's a quad LFO system built around a minimal and futuristic 4.3′′ multi-touch screen, where you literally draw your modulation curves by hand. Forget approximations with knobs or some complex utility with deep menu diving — here you sketch the exact shape you need with your fingers, add or remove points with simple gestures, and watch your modulation animate in real time. It's sort of like the immediacy of drawing automation lanes in a DAW, but brought into the tactile world of hardware.

The four LFOs can run completely independently or be linked together in its extensive routing matrix. The rate range is vast, from a "speedy" 10 Hz down to a single cycle every 60 minutes (...that's pretty insane!). That extreme low end is great for crafting glacial, evolving soundscapes that unfold over extended periods. At that time-span, it would make for a great modulation source to control an ever-evolving sound installation. Through its minimalistic visuals on the screen, you're able to grasp exactly where you are in each cycle, which is genuinely useful when coordinating multiple slow-moving modulations. Beyond the shape, you have deep control over voltage range (from −5V to +10V), offset, direction, and multiple trigger behaviors like one-shot, sample & hold, and ping pong.

As mentioned above, the ELFO also comes with an internal modulation matrix, which is where things get truly tangled and interesting. Any LFO can modulate the rate, phase, or voltage range of any other LFO, internally and from external CV. This quickly transforms simple, hand-drawn shapes into complex, organic patterns that are constantly morphing. On top of that, there's also another layer of rhythmic possibilities — two independent gate outputs listen to the combined behavior of all four LFOs and can spit out triggers based on adjustable threshold and phase settings.

Then there's the "Magic Crystal" function, which Enjoy Electronics describes with somewhat mystical language. Strip away the marketing, and it's essentially a randomizer that periodically reassigns modulation routings according to internal logic. You can let ELFO make routing decisions autonomously, introducing unpredictability into otherwise stable patches, sort of like having an assistant who occasionally moves a few patch cables when you're not looking. Oh, and lastly — you can store all of these settings as presets, so nothing is lost past the next power cycle!

ELFO’s touchscreen approach makes waveform creation immediate and visual in ways that traditional LFOs normally don't. Drawing modulation curves with your fingers feels intuitive once you get past the initial novelty.

ELFO presents a fresh interface to an old function, and if you know how to deal with automation curves in your DAW, this should come as second nature.

Features:

• Four independent LFOs with cross-modulation routing
• 4.3" multi-touch touchscreen interface
• Touch-based custom waveform drawing and editing
• Add, move, or remove waveform points via gestures
• Modulation matrix with internal and external CV routing
• Rate range: 10 Hz to one cycle per 60 minutes
• Voltage range: -5V to +10V with offset control
• Forward and reverse playback per LFO
• Multiple trigger modes: Play/Pause, One Shot, Reset, Gate, Trigger Step, Sample & Hold, Ping Pong, Random Phase
• Internal and external clock sync
• Two independent gate outputs (threshold and phase-based)
• Four CV inputs and four CV outputs
• Four trigger inputs
• One clock input
• Oscilloscope waveform view
• Preset storage for custom waveforms and parameters
• "Magic Crystal" function for autonomous routing randomization
• Unipolar and bipolar modulation modes