Detail 01
1.005 inch cup diameter
Large tenor size. More lip vibrating means more sound, but it costs endurance if your air isn't there.

Independent shopping perspective
Gold-plated Schilke 51D large shank trombone mouthpiece. Deep D cup at 1.005 inches, aimed at strong symphonic tenor players and euphonium doublers.

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
Large tenor size. More lip vibrating means more sound, but it costs endurance if your air isn't there.
Detail 02
Very deep. Adds warmth and low-register body, and pulls brightness out of the tone.
Detail 03
Open throat. Less resistance and more air required, which is why this suits strong players.
Detail 04
Fits large bore tenor and bass receivers only. A medium bore horn will not accept it.
Detail 05
Smoother, warmer feel on the lips than silver, and an alternative if silver causes a reaction.
Detail 06
The deep cup and large diameter carry over, so one piece covers symphonic trombone and euphonium.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Only if your slide has a large shank receiver, typical of large bore tenor and bass trombones. Medium and small bore horns need a small shank mouthpiece.
Nearly the same diameter, but the 51 uses a bowl-shaped cup while the 51D goes to a much deeper D cup. The 51D is darker and heavier, and takes more air.
Yes. Schilke specifically points the 51D at euphonium, where the very large D cup produces a full dark tone.
No. For bass trombone Schilke's larger models like the 58, 59, and 60 run from 1.090 to 1.143 inches. The 51D sits in large bore tenor territory.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.