Detail 01
Large shank
Fits large-bore trombone and euphonium receivers only. Small-bore horns need a small-shank mouthpiece, not this one.

Independent shopping perspective
Large-shank 4AL in gold plate. A 26mm cup with a barrel backbore and open throat, built for a full, dark low register on euphonium or large-bore trombone.

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 and euphonium receivers only. Small-bore horns need a small-shank mouthpiece, not this one.
Detail 02
Wide. More lip vibrates inside the cup, which fills out the low register but costs endurance up high.
Detail 03
A moderately wide rim spreads pressure across more lip, helping endurance on long parts at the expense of some slotting precision.
Detail 04
Open throat. Less resistance and more volume at the top end, but it takes steady air to keep the sound centered.
Detail 05
Straight-walled backbore that adds core and darkness rather than edge. Paired with the deep cup it favors weight over brilliance.
Detail 06
Feels warmer and slicker on the lip than silver, and is the usual choice for players whose skin reacts to silver plate.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Only if it's a large-bore horn with a large-shank receiver. Small and medium-bore trombones take a small shank. Check the receiver before ordering.
Both. It's a classic euphonium model, and large-bore trombonists with strong air use it for a big, dark sound.
The difference is mostly in feel — gold is slicker and warmer against the lip than silver. Cup, throat and backbore drive the sound.
If you're coming off a smaller student mouthpiece, likely at first. It gives a fuller low register but takes more air and stamina, and the high range gets harder.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.