Muse Spark Open vs LFM2.5-24B-A2B

Patchbay is a small studio in Rotterdam where vintage synthesizers come back to life. We are three technicians, musicians and longtime collectors who have spent the last decade trading schematics, hunting spare parts, and learning the quirks of every oscillator and filter that has passed through our hands.

What started as helping friends keep their Junos and ARPs in tune has grown into a dedicated workshop in the north of the city. We repair, restore and service instruments from the sixties to the early nineties, from well-known classics to rare prototypes that barely left the factory.

We believe these machines are more than equipment. They carry histories, imperfections and sounds that cannot be replaced. Our job is to respect that character while making sure each instrument is reliable, playable, and ready for another lifetime of music.

Patchbay is a small, three‑person studio in Rotterdam dedicated to bringing vintage synthesizers back to life. Founded by longtime gear enthusiasts, we combine hands‑on craftsmanship with a deep knowledge of analog electronics to restore, calibrate, and enhance instruments that have been out of tune for decades. Our workshop is a place where old circuitry meets modern precision, and where each repair is treated as a chance to learn something new about the machines we love. We work closely with musicians, collectors, and repair shops across the Netherlands, offering personalized service that respects the history and character of each instrument. By preserving the sonic quirks of classic synths, we help artists keep the sounds that shaped electronic music alive today. At Patchbay, the goal is simple: keep the past humming and give it a future. Our three‑person team blends electronics expertise, music production insight, and meticulous restoration craft.