Detail 01
17.25mm cup diameter
Mid-size in this line, between the 17mm 7s and the 18mm 4s. Splits high-register ease against volume.

Independent shopping perspective
Silver-plated French horn mouthpiece, 17.25mm cup with a narrow 3.88mm rim. American-style cup for horn players wanting a fuller, more professional tone.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
Mid-size in this line, between the 17mm 7s and the 18mm 4s. Splits high-register ease against volume.
Detail 02
Narrow. Less lip contact means easier flexibility and cleaner slurs, but the rim digs in sooner on long sessions.
Detail 03
Tighter than the 4.60mm and 4.70mm models. Takes less air and gives more back-pressure to push against.
Detail 04
Shared across every Classic Series horn model, so switching sizes in the line changes rim and cup only, not the bore.
Detail 05
Slick, slightly grippier than gold. Wears through at the rim contact point after years and can be replated.
Detail 06
Cup and rim follow the American convention rather than the deeper European funnel most of this series uses.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
The 5N has a larger 17.50mm cup and a wider 4.60mm throat, for a smoother, richer sound. The 6N is slightly smaller and tighter, aimed at professional tone weight.
Not the first choice. The narrow rim rewards a developed embouchure. The 5, with its wider rim and shaped funnel cup, is the beginner size in this series.
It changes feel more than sound. Silver is slicker and firmer under the lip. Choose gold if silver irritates your skin.
It's a general-purpose size rather than a part-specific one. For dedicated low parts, the 4 and 4N give an 18mm cup and larger throat for volume.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.