Detail 01
Large shank
Fits large-bore trombone receivers only. On a small-shank horn it sits too loose and won't seal or seat properly.

Independent shopping perspective
A 6 1/2AL large-shank trombone mouthpiece in silver. The standard size for tenor trombones with a large-bore receiver.

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
Fits large-bore trombone receivers only. On a small-shank horn it sits too loose and won't seal or seat properly.
Detail 02
Medium-large rim with a fairly deep cup. Favors a broad, full tone over easy high-register work.
Detail 03
More air required and more resistance in the upper range, but a fuller, darker sound in the middle and low register.
Detail 04
Smooth on the lip, easy to clean, and less prone to the grippy feel bare brass develops as it oxidizes.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
It depends on your horn's receiver, not your playing level. Large-bore tenor and bass trombones take large shank; student small-bore horns do not.
Adapters exist but are not included here. Match the shank to your horn directly when you can — an adapter changes how the horn responds.
It's on the small side for bass. Bass trombone players generally use a wider, deeper cup to fill out the low register.
Possibly, if you're coming from a shallower cup. The deeper cup trades some upper-register ease for a fuller sound lower down.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.