Kelly vs Yamaha Baritone / Euphonium Mouthpieces
Kelly offers 4 baritone / euphonium mouthpieces (made in United States), while Yamaha has 4 models (made in Japan). On average, Kelly cups measure 25.40mm versus 22.00mm for Yamaha. Below we compare both lineups side by side to help you choose the right brand for your playing style.
Kelly
Models4
Avg cup25.40mm
Avg throat—
Common styleGeneral
CountryUnited States
vs
Yamaha
Models4
Avg cup22.00mm
Avg throat6.18mm
Common style—
CountryJapan
Kelly vs Yamaha — head-to-head comparisons
- Kelly 5G-EU-SS vs Yamaha AH-38D4
- Kelly 5G-EU-SS vs Yamaha EP-51DL
- Kelly 5G-EU-SS vs Yamaha AH-37C4
- Kelly 5G-EU-SS vs Yamaha EP-51DS
- Kelly 51D-EU-SS vs Yamaha AH-38D4
- Kelly 51D-EU-SS vs Yamaha EP-51DL
- Kelly 51D-EU-SS vs Yamaha AH-37C4
- Kelly 51D-EU-SS vs Yamaha EP-51DS
- Kelly 5G-EU vs Yamaha AH-38D4
- Kelly 5G-EU vs Yamaha EP-51DL
- Kelly 5G-EU vs Yamaha AH-37C4
- Kelly 5G-EU vs Yamaha EP-51DS
All models
Frequently asked questions
Which brand makes better baritone / euphonium mouthpieces — Kelly or Yamaha?
Neither brand is universally better. Kelly has 4 models and Yamaha has 4. The best choice depends on your playing style, preferred cup depth, and tonal goals. Compare specific models head-to-head to find the right fit.
How do Kelly and Yamaha baritone / euphonium mouthpieces compare in size?
Kelly averages 25.40mm cup diameter with N/Amm throat. Yamaha averages 22.00mm cup diameter with 6.18mm throat.