Detail 01
16.87mm inner rim diameter
Middling for horn. Enough surface for endurance, not so wide that high notes get unstable.
Product detailSKU #1274115035020
YamahaStandard Series French Horn Mouthpiece 32D4
Independent shopping perspective
The Korena take
Yamaha's 32D4 French horn mouthpiece: a medium-wide 16.87mm rim with a semi-shallow V cup, aimed at Bb horn players wanting a warm, centered sound.
Strong match
Who this is for
- Bb horn players who want warmth without losing core
- Students stepping up from a stock mouthpiece
- Horn players who find deep V cups too heavy in the upper register
Consider the trade-offs
When to look elsewhere
- Players needing a deep cup for dark low-register work
- Anyone on a mouthpiece with a much smaller rim — the switch is a jump
- Double horn players focused on F-side response
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
Brightens and lifts the top end compared to a deep cup, while keeping the round V-cup horn tone.
Detail 03
3.90mm throat
Standard horn bore. Blows with moderate resistance — feedback for control rather than a wide-open feel.
Detail 04
Semi-wide backbore
Opens the sound past the throat and helps the tone stay warm instead of pinching at louder dynamics.
Detail 05
Semi-thick rim, standard contour
Spreads pressure over more lip than a thin rim, so it's easier on endurance through long rehearsals.
Detail 06
Designed for Bb horn
Voiced around the Bb side. Works on a double horn, but F-side response is not what it was tuned for.
Final check
Know before you order
- 01Mouthpiece only — no pouch, case, or brush included
- 02Give a new rim two weeks before judging it; your chops adapt
- 03Compare your current rim diameter first — 16.87mm may feel wider or narrower
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fit my French horn?
Yes. It uses the standard French horn shank, which fits the receiver on standard single and double horns. Some vintage or European horns use different taper — check yours if it's unusual.
02How does it compare to a Giardinelli S16?
Yamaha lists the 32D4 as its equivalent, so if you play an S16 the feel should be familiar.
03Is this good for a beginner?
Yes. The medium rim and semi-shallow cup are forgiving, and it's a step up in consistency from most mouthpieces that ship with student horns.
04Will it help my high range?
The semi-shallow cup generally makes the upper register easier than a deep cup does. It won't replace practice, but it removes some resistance up top.
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)
