Edgehog Systems

EH-01

A compact experimental sampler synth.
No menus. No LEDs. No screen.
Just control.

Multiple synth systems, SD + memory playback, glitch, loop, morph, record and repeat in a small hands-on instrument built for immediate noise, rhythm and strange little moments.

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EH-01 synth Kickstarter launch image
Product study

Launching soon
join the early list.

EH-01 is moving toward Kickstarter, and early support will help shape the first production run.

EH-01 early access

Launching soon on Kickstarter, with limited early units planned from US$179. Expected retail pricing is around US$249.

To support the project and reserve your chance to own an Edgehog EH-01, subscribe at the top of the page for release dates, production updates and launch news.

Subscribers will get early access to launch updates, early-bird pricing and limited pre-release unit information while stock lasts.

Join the list for early access. Prices shown in USD. Final Kickstarter pricing may vary slightly.

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What it does

Small box. Direct controls. Weird results.

Built around immediacy: buttons, knobs, samples, synth voices, loops and performance accidents that are actually useful.

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EH-01 filter detail

Memory samples

Fast onboard sample sets for drums, vocal textures, glitches and one-shot fragments.

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EH-01 SD playback detail

SD playback

Stream longer files from SD, hold loops, freeze moments and turn samples into playable material.

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EH-01 synth detail

Synth engines

Polyphonic digital synthesis with filter, envelopes and modulation and a voice-style formant synth engine, all under physical control.

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EH-01 USB MIDI detail

USB MIDI

Send notes, receive notes, map controls and use EH-01 with a DAW or browser companion tool.

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EH-01 browser companion detail

Local browser midi console

The EH-01 includes an offline Web MIDI console that turns a browser into a deeper control surface and sequencer. Over USB MIDI, it provides live sliders, note triggering, MIDI clock, preset storage, pattern saving, scene recall, song chaining, scale controls, and an assignable XY pad.

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EH-01 build detail

Make it yours

EH-01 is built to be customised. Swap knobs, change keycaps, experiment with colours, and use the included 3D-printable part files to make the instrument feel like your own.

All the clever bits hiding under the plastic.A look at the tech

PlatformTeensy 4.1 based digital audio system
Audio44.1 kHz stereo output via SGTL5000 audio codec
VoicesPolyphonic synth engine, Formant voice engine, plus memory and SD sample modes
ControlHands-on knobs and mechanical key switches
StatusPrototype / pre-release development

Computer UI.

The EH-01 includes an offline Web MIDI console that turns a browser into a deeper control surface and sequencer.

The sequencer supports 32 steps, velocity, probability, pattern variations, smart mutate, motion sequencing, and per-step CC locks. This allows notes and parameter changes to be sequenced together, giving the EH-01 browser-assisted parameter-lock behaviour in a compact, local, no-install interface.

EH-01 synth detail
Blueprint views

Schematic paths.

Blueprint-style views of EH-01's sound systems: voice flow, sample routing, control mappings, modulation paths and performance logic.

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About

About me.

About Edgehog Systems

Designed, built and tested by hand.

Hi, my name is Leo Rolph. I’m a designer working from a small home studio in Fremantle, Western Australia. With a strong background in graphic and product design, I’ve always had a small obsession with electronics, synths and sound generation.

EH-01 is the result of multiple years of experimentation, many synth prototypes and a long string of design choices. It did not start as a commercial product. It started as an instrument I wanted for myself: small, capable, non-standard, immediate and built around several different sound systems I could use for my own sound generation.

The final EH-01 is an attempt to give other people the same kind of hands-on joy I get from playing with it.

Watch it move

Demos from the bench.

Two quick looks at EH-01 in motion: hands-on controls, sample behavior and the rough edges that make it feel alive.

MIDI sequencer console

A first look at the instrument responding to MIDI control.

Sound fragments

More texture, rhythm and raw sample behaviour from the current build.

Sign up for your chance to own one before the first run goes live.

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