Detail 01
Large shank
Fits large-bore tenor and bass receivers only. A small-bore horn needs the small-shank 5BS instead.

Independent shopping perspective
Large-shank trombone mouthpiece with a 25.73mm cup and medium backbore. For tenor players on a large-bore horn who want high-register security and a rich tone.

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 tenor and bass receivers only. A small-bore horn needs the small-shank 5BS instead.
Detail 02
Mid-sized for tenor. Enough room for a full sound, not so wide that endurance falls apart on long sets.
Detail 03
Middle of the road. Wider rims spread pressure for endurance, narrower ones favor flexibility. This splits the difference.
Detail 04
Fairly open. Moves more air for volume and low-end body, but wants steady breath support to stay centered.
Detail 05
Less blowing resistance than the barrel backbore on the 5AL, more focus than an open backbore like the 1AL.
Detail 06
Feels smoother and warmer on the lip than silver. Matters most to players whose skin reacts to silver plating.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Only if it takes a large shank — most large-bore tenors and bass trombones do. Student and small-bore jazz horns take a small shank, so you'd want the 5BS.
Same 25.73mm cup diameter. The 5AL has a deeper cup and barrel backbore for symphonic projection; the 5ABL uses a medium backbore aimed at high-register ease with a rich tone.
It handles lead work on a large-bore horn, but Denis Wick's jazz-oriented models — the 12CS and 9BS — are small shank and won't fit a large-bore receiver.
It changes feel more than tone. Gold sits smoother and warmer against the lip, which affects grip and comfort over a long session.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.