Detail 01
Size 12
A model number in Bach's own horn range, not a universal measurement. Sizes don't cross-reference cleanly to other brands.
Product detailSKU #1274115059524
BachFrench Horn Mouthpiece 12
Independent shopping perspective
The Korena take
French horn mouthpiece from Bach in size 12. A standard replacement or backup for players who already know this size works for them.
Strong match
Who this is for
- Replacing a lost or worn mouthpiece of the same size
- Keeping a spare in the case for gigs and rehearsals
- Students needing a step up from an unbranded stock mouthpiece
Consider the trade-offs
When to look elsewhere
- Players who haven't tried this size and can't test first
- Horns requiring a European shank taper
- Anyone chasing a specific custom rim or cup profile
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
French horn
Narrow shank and small rim cut for horn only. It will not fit trumpet, alto horn or mellophone.
Detail 03
Mouthpiece rim
Rim shape drives comfort and endurance more than anything else. A rim you dislike will not improve with practice.
Detail 04
Cup depth
Deeper cups darken the sound and cost some high-range security. Shallower cups do the reverse.
Final check
Know before you order
- 01Check whether your horn takes an American or European shank before ordering
- 02Nothing else is included — no pouch, case or brush
- 03Switching sizes mid-season costs weeks of adjustment; keep the old one
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fit any French horn?
It fits horns built for a standard American shank. Some horns, particularly European-made ones, use a different taper and need an adapter or a different mouthpiece.
02How does size 12 compare to other Bach horn sizes?
Bach's numbers describe their own line only. If you're happy on a 12 now, this replaces it directly. If you're not sure, compare against your current mouthpiece in person.
03Is this good for a beginner?
It works as a step up from a generic mouthpiece that came with a rental horn. Have a teacher confirm the size suits your embouchure before committing.
04How do I clean it?
Warm water, mild soap and a small mouthpiece brush. Do it weekly. Buildup inside the throat narrows the bore and changes how the horn responds.
