Josef Klier USA Mouthpieces are copies of the old Mt Vernon series by Vincent Bach. The mouthpieces are excellently finished, due to the very pleasant edge you have a good endurance.
The pleasantly wide edge has a positive effect on endurance. The flat bowl supports a bright, wide sound and a light high register. When looking for a good lead mouthpiece, the choice is quickly made on the 10 ½ E.
