Product description
The MIDI Bass & Chord PCB – Weltmeister is a professional‑grade printed circuit board designed specifically for MIDI accordion systems. Compatible with a wide range of Weltmeister models—including Supita, Cantus, S4, S5, Stella, and many others with bass mechanisms similar to Supita—this board is the ideal solution for upgrading your instrument with MIDI capability.
Unlike traditional systems, this PCB integrates both bass note detection and chord (mid‑range) note detection into a single unit, eliminating the need for a separate treble board on the bass side. This not only simplifies installation but also ensures accurate and reliable MIDI signal capture.
Manufactured in Germany from high‑quality materials, the board is engineered for durability, precision, and stable performance even under frequent use. It mounts easily onto the accordion’s bass mechanism and is compatible with sensors and magnets for MIDI detection.
Perfect Compatibility
Designed for Weltmeister Supita, Cantus, S4, S5, Stella. Fits many other accordions with bass mechanics similar to Supita.
Integrated Design
Combines bass and chord (mid‑range) note detection in one PCB. No separate treble board required for the bass side.
German Quality
Made in Germany with high‑grade components.Built for long service life and stable performance.
More about the product
Whether you are upgrading an existing MIDI accordion system or installing one for the first time, the Bass & Chord PCB – Weltmeister offers a compact, efficient, and reliable solution. With its integrated design, professional construction, and wide model compatibility, it is the ideal choice for technicians, accordion builders, and musicians seeking a dependable MIDI bass section.







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