Detail 01
Small shank
Fits standard tenor trombone leadpipes. Large shank horns need a different mouthpiece or an adapter.
Product detailSKU #1274115059792
BachSmall Shank Tenor Trombone Mouthpiece 4
Independent shopping perspective
The Korena take
A small shank tenor trombone mouthpiece in Bach's 4 size, a large-rim option for players who want more volume and low-register support.
Strong match
Who this is for
- Tenor trombone players moving up from a stock 12C or 11C
- School and community band players needing more low-range security
- Anyone with a small shank tenor horn, not a bass trombone
Consider the trade-offs
When to look elsewhere
- Beginners — the wide rim tires unconditioned chops fast
- Large shank or bass trombone horns; the shank will not seat
- Lead players who want an easy, secure high register
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
Size 4
In Bach's system a lower number is a wider rim. More air, fuller low notes, more endurance cost.
Detail 03
V cup shape
A deeper, funnel-leaning cup. Darker and rounder than a bowl cup, with less cut in loud passages.
Detail 04
No letter suffix
A plain 4 is the deepest cup Bach offers in that rim size, favoring low-register weight over high notes.
Detail 05
$85 price
Standard series pricing. The step-up Bach lines cost more for tighter tolerances, not a different rim size.
Final check
Know before you order
- 01Changing rim size resets your embouchure; expect a couple of weeks of adjustment
- 02Check whether your horn is small or large shank before ordering — they are not interchangeable
- 03Silver plate wears through over years on the rim; a replate costs a real fraction of a new piece
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is a Bach 4 bigger or smaller than a 12C?
Bigger. Lower Bach numbers mean wider rims, so a 4 is a substantial jump up from a 12C in both rim diameter and cup depth.
02Will this fit a bass trombone?
No. Bass trombones use a large shank receiver. This is a small shank piece and will not seat properly.
03Will it help my high range?
Generally the opposite. The wide rim and deep cup favor low and middle register power; the high register takes more work.
04Does it come with a pouch?
Bach Standard mouthpieces ship in a plastic sleeve or box, not a padded pouch. Buy a case separately if you carry it loose.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPlayability
- Neck Shape
- V
