Detail 01
10-3/4 size
Small cup diameter. Less lip vibrating area, so less air required and high notes come easier.
Product detailSKU #1274115059538
BachTrumpet Mouthpiece Group II 10-3/4CW
Independent shopping perspective
The Korena take
Bach 10-3/4CW trumpet mouthpiece — a small, shallow-ish cup with a cushion rim. For players who want easier upper register and a comfortable rim edge.
Strong match
Who this is for
- Lead and upper-register playing where endurance matters
- Players whose lips fatigue on sharp mouthpiece rims
- Marching or pep band work needing projection over comfort
Consider the trade-offs
When to look elsewhere
- Orchestral players wanting a broad, dark symphonic sound
- Beginners still building embouchure — small cups reward developed chops
- Anyone happy on a standard 7C who is not chasing high notes
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
C cup depth
Bach's medium standard depth. Balanced tone — not as bright as a shallow D, not as dark as a B.
Detail 03
W rim
Cushion rim: wider and rounder than standard. Spreads pressure across the lip for longer sessions.
Detail 04
Group II designation
Bach's mid-tier finishing line. Same cup geometry as the standard series at a lower price point.
Detail 05
Trumpet taper
Standard trumpet/cornet shank size. Fits Bb, C, and piccolo trumpets with a trumpet receiver.
Final check
Know before you order
- 01Mouthpiece only — no case, pouch, or brush included
- 02Cushion rims change your feel; expect a week of adjustment
- 03Small diameter can thin your low register at first
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How is the 10-3/4CW different from a 7C?
Smaller cup diameter and a cushion rim. The 7C is the general-purpose default; the 10-3/4CW trades some low-register width for easier high notes and rim comfort.
02What does the W mean in Bach mouthpiece numbers?
Wide cushion rim. The rim contact area is broader and more rounded than the standard rim, which spreads pressure across the lips.
03Will this fit my cornet?
No. This is a trumpet shank. Cornets take a shorter, narrower cornet shank mouthpiece.
04Is a smaller mouthpiece good for a beginner?
Usually not. Small cups reward a developed embouchure. Beginners typically start on a medium size and move smaller only if the register demands it.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPlayability
- Neck Shape
- D
