Detail 01
16.87mm rim inner diameter
Mid-size for horn. Enough room for low register without the pinch of a small rim.
Product detailSKU #1274115035013
YamahaStandard Series French Horn Mouthpiece 32C4
Independent shopping perspective
The Korena take
Bb-horn mouthpiece with a 16.87mm rim and semi-shallow V-cup. For horn players wanting a warm, rich sound on a Bb or double horn.
Strong match
Who this is for
- Bb horn players wanting a warmer, rounder core
- Students stepping up from a stock mouthpiece
- Players familiar with the YAC HR29B looking for a similar rim
Consider the trade-offs
When to look elsewhere
- Players needing a deep U-cup — look at the 32C4 instead
- Anyone who wants a thin rim for endurance-free flexibility
- Low-horn specialists who want a larger rim and bigger cup
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
Semi-shallow V-cup
V-cups favor a darker, more covered horn sound; shallower depth keeps the upper register responsive.
Detail 03
3.90mm throat
Standard horn throat. Keeps resistance where most players expect it rather than blowing wide open.
Detail 04
Semi-thick rim, standard contour
More cushion than a thin rim, which helps endurance, at some cost to lip flexibility.
Detail 05
Semi-wide backbore
Opens the sound slightly and helps the low register speak without going unfocused.
Detail 06
Designed especially for Bb horn
Voiced for the Bb side; works on a double horn but the Bb side is where it is happiest.
Final check
Know before you order
- 01Mouthpiece only. No pouch or case included
- 02Horn shanks vary slightly by maker — check fit before committing
- 03A rim change takes weeks to settle; do not switch right before an audition
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this work on a double horn?
Yes. It fits standard horn receivers. It is voiced for the Bb side, so the F side may feel slightly different than a deeper cup.
02How does the 32C4 compare to the 32B4?
The C4 designation is a U-cup; the B-series pieces are V-cups. This 32C4 is listed with a semi-shallow V-cup profile and a 16.87mm rim.
03Is this bigger or smaller than what came with my horn?
At 16.87mm inner rim it sits in the middle of Yamaha's range. Most stock student mouthpieces are close in size.
04What sound should I expect?
Warm and rich, per Yamaha's own description of the model. The V-cup leans darker than a comparable U-cup.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsBody & build
- Backbore
- semi-wide
2 detailsSize & weight
- Rim Inner Diameter Mm
- 16.87
- Cup Depth
- semi-shallow(v-cup)
21 detailsOther
- 29d4
- Holton VDC (double-cup)
- 34b
- Denis Wick 4N (V-cup)
- 33b
- Denis Wick 5N (V-cup)
- Characteristics
- Designed especially for Bb horn, it is close to the YAC HR29B, but has slightly different rim contour, producing a warm, rich sound.
- Throat Mm
- 3.90
- Rim Thickness
- semi-thick
- 32b
- Tilz 39, with larger rim diameter (V-cup)
- 31b
- Tilz 39 (V-cup)
- 30b
- Alexander 8 with shallower cup (V-cup)
- 34c4
- Bach 3 (U-cup)
- 33c4
- Alexander 8F, with larger rim diameter (U-cup)
- 32c4
- Alexander 8F (U-cup)
- 35c4
- Bach 3, with larger rim diameter (U-cup)
- 29c4
- Tilz 39S, with smaller cup (U-cup)
- Rim Contour
- standard
- 32d4
- Giardinelli S16 (double-cup)
- 31d4
- Giardinelli G17 (double-cup)
- 30c4
- Tilz 39S (U-cup)
- 30d4
- Holton VDC, with larger rim diameter (double-cup)
- 29b
- Alexander 5 with smaller rim diameter (V-cup)
- 28b
- Alexander 5 (V-cup)
