Our mouthpieces are designed and manufactured right here in our Arlington workshop. Time-tested designs and precision CNC machining combine to produce mouthpieces of exceptional quality and consistency. Our standard threads are compatible with Giardinelli, Moosewood, and others. We also make a metric range to encompass wider diameters and for compatibility with the PHC range.

Our goal was to produce a logical range of mouthpieces that allows the player to change one parameter at a time to obtain the desired results.

Osmun cups and rims are interchangeable within the same size. Pick any standard cup and standard (or +) rim, wide cup and wide rim, metric cup and metric rim-they all fit. Cups and rims are priced and sold individually. Replica Series mouthpieces are sold as cup-and-rim sets only.

Many french horn players are asked to play Mellophone or Alto Horn for marching band season.