Detail 01
16.87mm inner rim diameter
Standard horn rim size. Small enough for control in the high register, not so small that low notes choke.
Product detailSKU #1274115035155
YamahaStandard Series French Horn Mouthpiece 33C4
Independent shopping perspective
The Korena take
Bb horn mouthpiece with a 16.87mm rim, semi-shallow V cup and semi-wide backbore. For players wanting a warm sound without a deep-cup mouthpiece.
Strong match
Who this is for
- Bb horn players who find deep cups stuffy on top
- Students moving off a stock mouthpiece to a defined setup
- Section players needing a warm, blended tone rather than edge
Consider the trade-offs
When to look elsewhere
- Players who want a bright, cutting solo sound
- Anyone happy on a deep U-cup — this cup is shallower
- Players needing a large rim; 16.87mm is standard, not 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
Semi-shallow V cup
V cups round off the sound. Shallower means less air needed and easier high range than a deep V.
Detail 03
3.90mm throat
Moderate opening. Gives some resistance to push against, which helps stability more than a wide-open throat.
Detail 04
Semi-wide backbore
Opens the sound after the throat. Adds warmth and volume without the airiness of a fully wide backbore.
Detail 05
Semi-thick rim, standard contour
Spreads pressure over more lip than a thin rim. More comfortable on long sessions, slightly less flexible for fast slurring.
Detail 06
Close to the YAC HR29B
Similar overall setup with a different rim contour, so the feel on the lip changes more than the sound does.
Final check
Know before you order
- 01Designed for Bb horn — check it suits your instrument and playing
- 02Expect an adjustment period; rim contour changes take days to settle
- 03Nothing else included: no pouch, case or brush
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is this good for a beginner?
It works as a step up from a stock mouthpiece. The standard rim and moderate throat are forgiving, and the semi-shallow cup takes less air than a deep cup.
02Will it make my high notes easier?
The semi-shallow cup and 3.90mm throat generally help the upper register compared to a deeper cup and wider throat. Your embouchure still does most of the work.
03How does it compare to a deep U-cup mouthpiece?
The V cup here is semi-shallow, so it reads warmer and rounder in color but less dark and heavy than a deep U cup, with less air required.
04Does the shank fit standard horns?
It is a standard-series horn mouthpiece built for Bb horn. If your instrument takes a non-standard receiver, check before ordering.
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)
