Union Rig's AI-driven effects engine doesn't care about your feelings. The warm, compressed, fully analogue signal chain does.

$849 — Shipping 2027
How it works
Your signal enters a fixed topology — six processing stages, always in the same order. We tried every other arrangement. This is the one where nothing fights anything else. The weight of your pickups, the way you dig in — all of it passes through intact.
The engine builds your working set — twelve sounds shaped to how you actually play. Not presets yanked from a library. Each one is a complete signal state: dynamics, saturation character, spatial depth, stereo field, output shaping. Tuned together so they work as a set, not a pile.
Each macro control maps to several parameters simultaneously through curved relationships. Turn Heat up and the saturation doesn't just clip — it breathes. Asymmetric harmonics shift the overtone balance while the frequency response reshapes around them. One knob. Many variables. All moving together on purpose.
Hold the scene switch and the engine crossfades every parameter between A and B — smoothly, no stepping, no zipper noise, no dropout. Let go and it comes back. Every transition is shaped so the midpoint sounds as intentional as the endpoints. Twenty-four playable states. Zero interruptions.
Every sound you've ever loved was made by someone who trusted their gear.
Machines are useless if you can't trust them.
Trust what works.
Fixed Signal Chain
Six stages. Fixed order. Every one of them is load-bearing.
Dynamics reshape how your playing enters the chain — not just compression, but sensitivity to your touch. Drive stages use nonlinear saturation with asymmetric harmonic content that shifts as you push harder. The stereo field is built from mono through time-domain processing — real width, no phase tricks. The space engine doesn't simulate a room. It builds one around your signal, sample by sample. Cabinet modeling adds dimensional character. The output stage limits transparently so nothing clips on the way out.
DYNAMICS
Pick response
DRIVE
Saturation
CHARACTER
Tone shaping
STEREO
Width split
SPACE
Delay + reverb
OUTPUT
Final shape
Six knobs. Four footswitches. Nothing else.
Tone / Feel
Touch
Heat
Body
Touch reshapes how your dynamics hit the chain. Not a volume knob — it's a sensitivity curve that changes threshold, ratio, and response time together. Heat is multi-stage saturation with asymmetric harmonics that shift the overtone balance as you push harder. Body moves the tonal center of gravity — low-end resonance, high-frequency rolloff, and air, all on one control.
Space / Time
Depth
Motion
Tempo
Depth controls the space engine — algorithmic reverb that responds to your signal, not a static impulse. Wet level, decay time, and damping all move together. Motion adds character and movement through the modulation stage. Tempo sets the time reference for anything rhythmic.
Footswitches — left to right
Looper
Scene A/B
Next
Previous
Sound is math with a little bit of chaos.
Interactive pedal simulator. Turn the knobs, switch scenes, navigate sounds -- hear the Chaincraft DSP engine in real-time.
Tone / Feel
Heat
Touch
Body
Space / Time
Motion
Depth
Tempo
Looper
Scene
Next
Prev
12 sounds. 2 scenes each. No banks.
Your working set is always loaded. Step through sounds with your feet. Switch scenes inside a song. Hold the scene switch to morph between A and B, let go to come back. Twenty-four playable states, zero menu diving.
The AI learns how you adjust — not who you are. A local preference memory nudges future sounds toward your tendencies. No cloud. No tracking. Wipe it whenever you want.
4.2" e-ink display
Shows where you are. Not what to do. No meters. No animations. Orientation, not permission.
Performance Looper
Single loop. Sound-on-sound overdub. Recorded post-dynamics, pre-space — so when you change the room or flip scenes, the loop moves with you. This isn't a looper bolted onto a rig. It is the rig. Switch sounds, swap scenes — the loop lives inside all of it. Kill it when you're done.
Mono In
Stereo Out
6
Macro Knobs
4
Footswitches
12
Sounds Loaded
24
Playable States
0
Menu Dives
Built to last
Milled from a single block of aluminum. No plastic anywhere. It'll outlive your band.
IEC C14 inlet with universal AC-DC conversion. No wall wart. Earth-grounded to the chassis.
Audio processing runs isolated and in real time. No operating system. No jitter. No dropouts. Full stop.
The AI shapes parameters and builds sounds. It never touches your signal. That stays analogue.
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