Detail 01
17.50mm cup diameter
Mid-size for horn. Enough room for a full low register without the endurance cost of an 18mm.

Independent shopping perspective
Gold-plated French horn mouthpiece with a 17.50mm cup and a narrow 3.90mm rim. For horn players chasing a smoother, rounder sound.

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 for horn. Enough room for a full low register without the endurance cost of an 18mm.
Detail 02
Less lip contact means faster flexibility and slurs, but the pressure concentrates — endurance drops if you push hard.
Detail 03
Slightly open. Air moves freely and the sound stays rich, but it takes steady support to fill.
Detail 04
Straight-walled bore. Adds resistance and centers the pitch compared to a flared taper.
Detail 05
Softer and warmer on the lip than silver. Preferred by players whose skin reacts to silver plate.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Same 17.50mm cup and 4.60mm throat. The 5 has a 4.95mm standard rim; the 5N narrows it to 3.90mm, trading some endurance for flexibility and a smoother sound.
The standard-rim 5 suits beginners better. The 5N's narrow rim rewards a developed embouchure and can wear out a new player quickly.
It mainly changes feel — gold is softer and warmer against the lip. Any tonal difference is small next to cup, rim, and throat dimensions.
It works across parts, but the 17.50mm cup lines up with 1st and 3rd horn territory. For 2nd or 4th, the 18mm 4 or 4N gives more low-end volume.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.