Detail 01
The 12 rim size
One of Bach's smaller diameters. Easier endurance and upper register, but less room for the lip to vibrate down low.
Product detailSKU #1274115060133
BachTrumpet Mouthpiece Group II 12C
Independent shopping perspective
The Korena take
A small-rim, medium-cup trumpet mouthpiece. A reasonable all-around piece for students and players who want endurance over a big, broad sound.
Strong match
Who this is for
- Students moving off a stock factory mouthpiece
- Players who fatigue quickly on wide rims
- Concert band and general-purpose playing
Consider the trade-offs
When to look elsewhere
- Players chasing a large, dark orchestral tone
- Anyone with a heavy or uneven lip needing more rim
- Cornet players — the shank is different
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
The C cup
Bach's medium depth and the most common choice. Balanced tone, no strong bias toward bright or dark.
Detail 03
Group II designation
Shank taper spec. Match it to your instrument's receiver so the mouthpiece seats at the right depth.
Detail 04
Small rim plus medium cup
The combination favors control and stamina over volume. You will not overpower a section with it.
Detail 05
Silver plating
Grippier than gold and holds up to daily use. A small number of players react to silver on the skin.
Final check
Know before you order
- 01Rim diameter is the biggest change you will feel — smaller is not automatically easier
- 02Give any new mouthpiece a couple of weeks before deciding
- 03Confirm the shank group matches your trumpet's receiver
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How is a 12C different from a 7C?
Both are medium-cup. The 12 has a smaller rim diameter, so it favors endurance and the upper register. The 7C gives more room and a slightly fuller low range.
02Is this a good student mouthpiece?
Yes, if the smaller rim suits you. The medium cup is forgiving across the range and works for concert band and lesson playing.
03Can I use this on a cornet?
No. Cornet receivers take a different shank taper. Use a cornet mouthpiece on a cornet.
04Do I need anything else with it?
No. Drop it in and play. A mouthpiece pouch and a brush for regular cleaning are worth having.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPlayability
- Neck Shape
- D
