Muse Wonder vs Mistral Large 4

Patchbay is a small workshop in Rotterdam where three of us spend our days bringing vintage synthesizers back to life. We repair and restore instruments from the 1960s, 70s, and 80s — Minimoogs with drifting oscillators, Junos with silent choruses, Prophet-5s that have not powered on in decades — tracing faults board by board, replacing tired components, and calibrating each machine until it sounds musical again. We believe these instruments were built to be played, not preserved behind glass, so we work carefully and reversibly wherever possible, documenting every repair and keeping original parts when they can be saved. Musicians, studios, and collectors bring us synths from across Europe, sometimes in flight cases, sometimes in pieces. Whether it needs a full restoration or a single sticky key, we treat it as if it were our own, and we will not send it home until we would happily play it ourselves.

Patchbay sits in a former warehouse on Rotterdam's northern edge, where the Maas meets the industrial harbour. Three of us work here—no more, no less—surrounded by oscilloscopes, desoldering stations, and the persistent hum of transformers. We repair vintage synthesizers. That is the whole business.

We are not a museum, and we are not a factory. Every Minimoog, ARP 2600, or Juno that crosses our bench receives the same stubborn attention: traced schematics, replaced capacitors, calibrated voltages, hours spent listening for the note that was never quite right. The machines arrive broken, silent, forgotten. They leave singing.

Rotterdam built its reputation on moving heavy things and keeping them moving. We apply the same pragmatism to circuits that predate us by forty years. If it made sound once, it can make sound again. That is the promise we keep, solder joint by solder joint.