Powerful stop, specified by John Compton on a few of his instruments. In German, the word Posaune means ‘Trombone’ or ‘Sackbut’.
Construction:
Metal, tapered resonators of relatively narrow scale.
Tonality:
Powerful stop combining the smoothness of a Tuba with the increased ‘edge’ of a Trumpet. Narrower scale than a Tromba.