Detail 01
K throat
The Symphony D standard bore. Sets a firm resistance point that lets you push volume without the sound spreading.

Independent shopping perspective
Schilke Symphony D Series trombone mouthpiece, gold-plated. Large-bore tenor and bass players wanting a deep sound core with clear articulation.

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
The Symphony D standard bore. Sets a firm resistance point that lets you push volume without the sound spreading.
Detail 02
More open than the plain D5 sizes. Easier air movement, at the cost of some of the core's focus.
Detail 03
Weight sits lower in the sound. Articulation stays crisp because the cup shape is otherwise conventional.
Detail 04
The most open option here. Adds depth and holds together from pianissimo to fortissimo.
Detail 05
Same rim diameter you already know from the 60, so only the feel of the blow changes, not your embouchure.
Detail 06
Warmer, slicker on the lips than silver and tarnish-free. Rim plating wears faster with heavy use.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
The D5.1 is the middle ground: standard cup, K throat, deeper sound bottom, built for principal-chair work. Move to a tapered-throat D5.2 or D5.3 if you want a more open blow.
It has the same rim diameter as the Schilke 60 with an extra-large bowl, O throat and large Schmidt backbore. That combination suits large-bore and bass work.
The D cups give a deeper bottom to the sound core with sharper articulation, and the resistance is set for orchestral principal playing rather than all-purpose use.
Practically no. It changes grip and comfort — smoother and warmer than silver — and it will not tarnish.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.