Detail 01
Large shank
Fits large-bore tenor and bass trombone receivers. A small shank horn needs a different mouthpiece or an adapter.
Product detailSKU #1274115059999
BachLarge Shank Trombone Mouthpiece 4G
Independent shopping perspective
The Korena take
Large shank trombone mouthpiece with a moderately deep cup. A standard-issue choice for students and section players moving off a stock mouthpiece.
Strong match
Who this is for
- Students outgrowing the mouthpiece that shipped with a rental horn
- Concert band and orchestral trombone in the low-to-mid register
- A reliable spare to keep in the case as a backup
Consider the trade-offs
When to look elsewhere
- Small shank trombones — it will not seat correctly
- Lead players chasing a bright, cutting high register
- Anyone already dialed in on a custom rim contour
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
4G rim size
Wide rim diameter. Spreads pressure over more lip, which helps endurance but takes more air to control.
Detail 03
Deeper cup
Darker, rounder tone with more low-register support. High notes take more work than on a shallow cup.
Detail 04
Brass with silver plating
Standard finish. Comfortable at room temperature, easy to clean, and it will show wear on the rim over years.
Detail 05
$85 price
Mid-tier for a name-brand mouthpiece. Below custom shop pricing, above generic stock replacements.
Final check
Know before you order
- 01Check whether your trombone has a large or small shank receiver first
- 02No case, pouch, or brush is included
- 03Switching mouthpiece sizes takes a few weeks to adjust to
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fit my trombone?
Only if your trombone has a large shank receiver. Large bore tenors and most bass trombones do. Many student and jazz trombones use small shank and will not accept it.
02Is a 4G good for a beginner?
It works, though the wide rim and deeper cup ask for more air than a smaller mouthpiece. Students with a developing embouchure often find a narrower size easier at first.
03Can I use this on a bass trombone?
Yes, it fits a bass trombone receiver. Many bass players prefer something deeper still for the pedal register.
04How do I clean it?
Warm soapy water and a mouthpiece brush. Rinse and dry it fully. Avoid harsh abrasives that can scratch the plating.
