Detail 01
16.46mm inner rim diameter
Narrow. Concentrates the lips and supports high notes, but leaves less room to open up in the low register.
Product detailSKU #1274115035081
YamahaHeavyweight Series Trumpet Mouthpiece With Gold-Plated Rim and Cup 14A4a
Sale
Independent shopping perspective
The Korena take
Heavyweight gold-plated Yamaha 14A4a: a tight, semi-shallow lead and piccolo mouthpiece for players who already know they want brilliance and altitude.
Strong match
Who this is for
- Piccolo and D trumpet work where clarity matters more than warmth
- Lead players who need cut over a loud section
- Trumpeters chasing easier upper register with more resistance to lean on
Consider the trade-offs
When to look elsewhere
- Orchestral or legato playing that needs a broad, dark core
- Beginners still building embouchure on a medium 7C-size cup
- Players with larger lips who find narrow rims pinch quickly
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 cup
Brighter, more cutting sound with quicker response. Trades body and warmth for projection and easier altitude.
Detail 03
Heavyweight blank
Extra mass steadies slotting and holds the core together at high volume. Response feels a bit less flexible.
Detail 04
3.65mm throat
Tighter than average, so you get more back pressure. Useful feedback for control, but tiring across long loud passages.
Detail 05
Semi-narrow backbore
Adds resistance and keeps the sound compact and focused rather than spread. Reinforces the brilliance of the shallow cup.
Detail 06
Semi-flat rim
Spreads contact pressure over more lip, which helps endurance. Slightly less agile than a rounded rim on fast slurs.
Detail 07
Gold-plated rim and cup
Smoother, slicker feel on the lips than silver, and a way around nickel and silver skin reactions.
Final check
Know before you order
- 01Mouthpiece only. No pouch, case or cleaning brush included.
- 02Switching from a medium cup takes weeks of adjustment before your low register settles.
- 03Gold plating scratches easily. Keep it off hard surfaces and out of loose gig bags.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Is the 14A4a good for a beginner?
No. The narrow rim and semi-shallow cup reward a developed embouchure. A beginner will fight for low notes and burn out fast.
02What does the 14A4a compare to on a Bach chart?
Yamaha uses its own numbering. Go by the measurements: 16.46mm inner diameter with a semi-shallow cup puts it in lead and piccolo territory.
03Will this fit my Bb trumpet too?
Yes, it fits a standard trumpet receiver. It is built for D and piccolo brilliance, so on Bb expect a bright, cutting sound.
04Why is the heavyweight version more expensive?
More brass in the blank plus gold plating on the rim and cup. The mass changes how the piece slots and holds together loud.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsBody & build
- Color
- Gold
- Backbore
- Semi-narrow
2 detailsSize & weight
- Rim Inner Diameter Mm
- 16.46
- Cup Depth
- Semi-shallow
4 detailsOther
- Rim Contour
- Semi-flat
- Characteristics
- Helps generate brilliant sound on D and piccolo trumpet
- Throat Mm
- 3.65
- Rim Thickness
- Standard
