Conn Helleberg Tuba/Sousa Mouthpieces

Conn Helleberg Tuba/Sousa Mouthpieces
120S Standard Size
Original World Famous Mouthpiece named after the principal tubist of the Sousa band. Produces a very deep organ like tone with excellent volume. Deep Cup. Medium round rim shape.
1207B 7B
Similar to the Standard Model with a shallower cup. Produces a brighter tone with more volume. Medium deep cup. Medium round rim shape.