Detail 01
Large shank
Fits large-bore trombone receivers. It will not seat properly in a small-shank horn — check your slide before ordering.
Product detailSKU #1274115060160
BachLarge Shank Trombone Mouthpiece 6-1/2AL
Independent shopping perspective
The Korena take
Bach 6-1/2AL in large shank — the standard-issue trombone mouthpiece for bass-clef and large-bore horns. Common default for good reason.
Strong match
Who this is for
- Large-bore tenor trombone with an F attachment
- Symphonic and concert band section playing
- Students moving up from a small-bore student horn
Consider the trade-offs
When to look elsewhere
- Small-bore student trombones — shank won't seat
- Lead players wanting a bright, shallow commercial sound
- Bass trombone, where a larger mouthpiece is standard
What matters in use
The specifications, translated
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 02
6-1/2AL size
Medium-large rim with a fairly deep cup. The most widely used all-around size for orchestral and concert tenor trombone.
Detail 03
AL cup
Deeper than a plain 6-1/2. Broader, darker sound with more low-register support, at some cost to upper-register ease.
Detail 04
Medium-large rim diameter
Enough surface to spread pressure for endurance, without the jump in air demand a full bass-trombone size brings.
Detail 05
Silver plating
Standard finish. Wears slowly, cleans easily, and can irritate skin for players with a silver sensitivity.
Final check
Know before you order
- 01Measure your receiver — large and small shank are not interchangeable
- 02Mouthpiece only. No pouch, brush or case included.
- 03Deeper cup takes more air; expect an adjustment period from a smaller size
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fit my trombone?
Only if it has a large-shank receiver, typical of large-bore horns with an F attachment. Small-bore student trombones need a small-shank mouthpiece.
02What's the difference between 6-1/2A and 6-1/2AL?
The AL has a deeper cup for a broader, darker sound and better low register. Same rim size.
03Is this good for bass trombone?
It's playable but small for bass trombone. Bass players typically use a larger mouthpiece for the low register.
04Is this a good upgrade from a stock student mouthpiece?
Yes, if your horn takes a large shank. It gives a fuller, darker sound than the small mouthpieces that ship with student instruments.
