Drift
$329analog VCO · 12 HP · 70 mA · thru-zero FM
A triangle-core oscillator compensated just enough to stay in tune, and just little enough to sound alive.
in stock[ Eurorack modules · Portland, OR · batch nº 31 ]
Voltage in. Voice out. No presets.
Patchbay builds eurorack modules in small batches — oscillators that drift like they mean it, filters that sing when pushed, and a random source we can't fully explain. Every patch you make is one of one.
- In the line
- 6 modules
- Rack width
- 62 HP
- Warranty
- 10 years
PB-SCOPE · shop test rig
[ The modules ]
Six ways to bend a volt.
Small-batch, hand-calibrated, built to be patched hard. Every faceplate prints its own current draw, because guessing is for oscillators.
Bloom
$2894-pole lowpass VCF · 10 HP · 55 mA
A cascaded OTA filter that self-oscillates into a clean sine at full resonance. Push it and it pushes back.
in stockLedger
$219quad VCA / mixer · 8 HP · 48 mA · DC-coupled
Four VCAs that cascade into a mixer. The module nobody covets and everybody needs.
in stockStray
$189random / S&H · 6 HP · 32 mA · coin-flip gate
Sample-and-hold, slewed randomness, and a probability gate. The patron module of happy accidents.
batch 32 · ships augTide
$259function generator · 10 HP · 60 mA
Envelope, LFO, slew — one circuit, three jobs, with times from snap to geological.
in stockLoom
$3998-step sequencer · 16 HP · 95 mA · per-step probability
Eight steps, a ratchet you'll overuse for a month, and probability on everything. Open-source firmware.
preorder · sept[ Patch it ]
Wire it wrong. That's the right way.
Drag a cable from any OUT to any IN. Complete the classic voice — VCO → VCF → VCA → out — and the rack sings. Or ignore the manual and find something better; the LFO goes anywhere.
Rack is quiet. Grab a cable — start at a jack marked OUT.
Keyboard: Tab to a jack, Enter picks up a cable, Enter on another jack plugs it in, Esc drops it. Enter on a patched input pulls its cable. The preset buttons above do the wiring for you.
[ Specs ]
Numbers for the rack planners.
Shared across the whole line, so your power math stays boring — the way power math should be.
| Format | 3U Eurorack — Doepfer A-100 mechanical & electrical spec |
|---|---|
| Panels | 2 mm anodised aluminium, silver; legends printed, not stickered |
| Power | ±12 V via shrouded 10-pin header — draw printed on every faceplate |
| Depth | ≤ 28 mm behind the panel, skiff-safe, all of them |
| Jacks | Thonkiconn 3.5 mm, nuts torqued by hand — spares in every box |
| Calibration | every VCO burned in for 48 h and tuned twice, a day apart |
| CV range | audio ±5 V · CV 0–8 V · 1 V/oct tracking within 0.1% over 8 octaves |
| Firmware | Loom and Tide are open source — flash over USB, or don't, they ship happy |
| Warranty | 10 years, including the ones you patched wrong. Especially those. |
[ Systems ]
Start small. It won't help.
Three ways in. Every system ships pre-calibrated, cabled, and in a case we'd gig ourselves. Fair warning: “enough HP” is not a real number.
First Voice
$940
One complete subtractive voice. The classic patch, in hardware.
- Drift, Bloom & Ledger
- 42 HP powered case, near cost
- 10 cables + a cable we tie-dyed badly
- The patch card for the classic voice
most patched
Weekender
$1,590
The voice plus movement — modulation, chance, and room to get lost.
- Everything in First Voice
- + Stray & Tide
- 84 HP case with room to grow (it will)
- 20 cables, cable hanger, patch journal
The Wall
$2,780
Every module we make, twice the rack you need today. You'll fill it.
- All six modules, matched batch
- 2 × 104 HP powered case
- 40 cables in four lengths
- First refusal on every new batch
Every module ships solo too — systems just skip most of the case markup. Prices in USD; power cables and existential scope creep included.
[ Build slots ]
We build forty a month.
Small batches keep the calibration honest. Leave an email, pick a system, and we'll write back — a person, not a drip campaign — when your slot opens.