Detail 01
Double cup
A two-stage cup. Adds warmth and body without the loose, airy feel a single deep cup can give.
Product detailSKU #1274115034957
YamahaStandard Series French Horn Mouthpiece 30D4
1/8
Independent shopping perspective
The Korena take
French horn mouthpiece voiced for Bb horn, a double cup at Holton VDC size with a wider rim. For players wanting a warm, rich tone.
Strong match
Who this is for
- Bb horn players, and double horn players who work the Bb side
- Section playing where blend matters more than edge
- Holton VDC players who want a slightly wider rim
Consider the trade-offs
When to look elsewhere
- Players needing a bright, cutting solo sound
- V-cup players — this uses a double-cup profile
- Small-rim players; 16.87 mm will feel wide
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
16.87 mm rim inner diameter
Wide for a horn piece. More lip vibrating means a bigger sound and less high-register security.
Detail 03
3.90 mm throat
Tight by brass standards. Builds resistance, so soft playing and note slotting stay under control.
Detail 04
Semi-thick rim
Middle ground — enough cushion for long rehearsals, enough edge to keep articulation clean.
Detail 05
Semi-wide backbore
Opens the sound back up after the small throat, so the tone does not pinch at volume.
Detail 06
Voiced for Bb horn
Close to the HR29B with a different rim contour, aimed at a warm, rich sound.
Final check
Know before you order
- 01Horn shank tapers vary — check the piece seats fully in your receiver
- 02Sold as the mouthpiece only
- 03The 29D4 is the same double cup on a smaller rim
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What mouthpiece is this equivalent to?
The Holton VDC, with a larger rim diameter.
02Will it work on a double horn?
Yes, if the shank fits your receiver. It is voiced for Bb horn response, which is where double horn players spend much of their time.
03What is the difference between the 30D4, 30B and 30C4?
Cup shape. The 30B is a V-cup at Alexander 8 size with a shallower cup, the 30C4 a U-cup at Tilz 39S size, and the 30D4 a double cup.
04Is this suitable for a student?
A student on a Bb or double horn can use it. The sound is warm and forgiving, but the wide rim asks for some control in the upper register.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
4 detailsOther
- Category Source
- detail
- Tier
- new
- Korena Special
- false
- Source Id
- site51274115034957
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