The organ in the Marienkirche in Ahausen was built by Johann Hinrich Röver in 1863. The original disposition included 11 registers across two manuals and pedal but lacked certain features like a Mixtur and a Waldflöte 2’. Instead, it included a Bordun 16’ and a Traversflöte 8’. Over the years, the organ has undergone several modifications and restorations.

In 1939, the organ underwent a "Baroque" modification, altering its original configuration. This change was partially reversed in 1974/75 by organ builder Martin Haspelmath from Walsrode. In 1997, the organ received a thorough overhaul by Franz Rietzsch, ensuring its maintenance and functionality. The efforts to restore and preserve the organ reflect its historical significance and the continuous effort to maintain its original integrity.

Additionals: Manualkoppel (I/II), Pedalkoppel (I/P)

https://nomine.net/orgel/ahausen-marienkirche/