Detail 01
Top only
This is the rim and cup your lips touch. The backbore and shank are a separate purchase.
Product detailSKU #1275776906543
WarburtonTwo-Piece Bass Trombone Mouthpiece System in Silver 5B Top Only
Independent shopping perspective
The Korena take
The 5B top half of Warburton's two-piece bass trombone mouthpiece, silver plated. Buy it if you own a Warburton backbore and want this rim and cup.
Strong match
Who this is for
- Warburton players trying a different rim and cup
- Keeping one backbore and switching tops between parts
- Adding a second top for a spare or backup case
Consider the trade-offs
When to look elsewhere
- Players with no Warburton backbore — nothing to thread it onto
- Anyone wanting a one-piece mouthpiece with no assembly
- Tenor trombone players
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
Two-piece system
The top threads onto a backbore, so you can change the rim feel without changing the horn end.
Detail 03
5B designation
Identifies this rim and cup within the range. A 4B top is a different size in the same family.
Detail 04
Bass trombone top
Sized for bass trombone playing. Pair it with bass trombone backbores, not tenor parts.
Detail 05
Silver plating
Common plating for brass mouthpieces. Firm grip on the lip and simple upkeep.
Detail 06
$139.99 for the top
The backbore adds to this. Plan for both halves if you are starting from nothing.
Final check
Know before you order
- 01No backbore included — this half alone will not play
- 02Check whether your current backbore is the Warburton bass trombone type
- 03Thread the halves snug by hand; overtightening is hard to undo
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is this a complete mouthpiece?
No. It is the top half only — the rim and cup. You need a Warburton bass trombone backbore to complete it before playing.
02What is the difference between the 5B and the 4B?
They are two different rim and cup sizes in the same bass trombone range. Try both against the rim you play now to pick.
03Can I keep my backbore and just buy this?
Yes, if it is a Warburton bass trombone backbore. That is the point of the system — change one half at a time.
04Does it come in gold plate?
This one is silver plated. Plating choice is mostly about feel and how your skin reacts, not sound.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Color
- Silver
