Kelly vs Yamaha Cornet Mouthpieces
Kelly offers 9 cornet mouthpieces (made in United States), while Yamaha has 24 models (made in Japan). On average, Kelly cups measure 16.37mm versus 16.63mm for Yamaha. Below we compare both lineups side by side to help you choose the right brand for your playing style.
Kelly
Models9
Avg cup16.37mm
Avg throat3.87mm
Common styleGeneral
CountryUnited States
vs
Yamaha
Models24
Avg cup16.63mm
Avg throat3.86mm
Common style—
CountryJapan
Kelly vs Yamaha — head-to-head comparisons
- Kelly 3C vs Yamaha CR-14ES-GP
- Kelly 3C vs Yamaha CR-DUTOT-S
- Kelly 3C vs Yamaha CR-14ES
- Kelly 3C vs Yamaha CR-16ES-GP
- Kelly 5C vs Yamaha CR-14ES-GP
- Kelly 5C vs Yamaha CR-DUTOT-S
- Kelly 5C vs Yamaha CR-14ES
- Kelly 5C vs Yamaha CR-16ES-GP
- Kelly 7C vs Yamaha CR-14ES-GP
- Kelly 7C vs Yamaha CR-DUTOT-S
- Kelly 7C vs Yamaha CR-14ES
- Kelly 7C vs Yamaha CR-16ES-GP
All models
Kelly (9)
3C
17.02mm · V.Deep · General
5C
16.76mm · V.Deep · General
7C
16.51mm · Medium · General
7C-UK
16.51mm · Medium · General
4B-UK
16.51mm · — · Orchestral
6V
16.00mm · — · Dark/Deep
6V-UK
16.00mm · — · Dark/Deep
SCREAMER
16.00mm · Shallow · Lead
SCREAMER-UK
16.00mm · Shallow · Lead
Yamaha (24)
CR-14ES-GP
16.86mm · V.Deep
CR-DUTOT-S
16.90mm · V.Deep
CR-14ES
16.86mm · V.Deep
CR-16ES-GP
17.05mm · V.Deep
CR-11C4S
16.46mm · Medium
CR-DUTOT-L
16.95mm · V.Shallow
CR-11C4L
16.46mm · Medium
CR-11E4S
16.46mm · V.Deep
CR-15C4L
16.98mm · Medium
CR-13E4S
16.70mm · V.Deep
CR-16ES
17.05mm · V.Deep
CR-14A4aL
16.68mm · V.Shallow
CR-14B4L
16.85mm · Shallow
CR-17C4L
17.30mm · Medium
CR-6B4L
15.65mm · Shallow
CR-7A4L
16.24mm · V.Shallow
CR-7D4dS
16.24mm · Deep
CR-8D2S
16.36mm · Deep
CR-11A4L
15.99mm · V.Shallow
CR-11B4L
16.64mm · Shallow
Frequently asked questions
Which brand makes better cornet mouthpieces — Kelly or Yamaha?
Neither brand is universally better. Kelly has 9 models and Yamaha has 24. 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 cornet mouthpieces compare in size?
Kelly averages 16.37mm cup diameter with 3.87mm throat. Yamaha averages 16.63mm cup diameter with 3.86mm throat.