For the Seggelke-Line, barrels with two wooden rings and a slightly thicker belly has been proven to be the ideal design. The Vienna model comes with barrels with two metal rings.

The bell is of particular importance on the clarinet; its length and shape, as well as the thickness of the material, influence the response, intonation and timbre of the entire instrument. Jochen Seggelke, together with the company F. A. Uebel, has developed a special bell for the Seggelke-Line clarinets, so that the sound is carried into the room as round and focused as possible.