Bach vs Kelly Cornet Mouthpieces
Bach offers 94 cornet mouthpieces (made in United States), while Kelly has 9 models (made in United States). On average, Bach cups measure 16.13mm versus 16.37mm for Kelly. Below we compare both lineups side by side to help you choose the right brand for your playing style.
Bach
Models94
Avg cup16.13mm
Avg throat3.67mm
Common style—
CountryUnited States
vs
Kelly
Models9
Avg cup16.37mm
Avg throat3.87mm
Common styleGeneral
CountryUnited States
Bach vs Kelly — head-to-head comparisons
All models
Bach (94)
8½A
16.10mm · V.Deep
1½C
17.00mm · Medium
1B
17.00mm · Deep
2½C
16.40mm · Medium
10½E
15.90mm · Shallow
11½A
15.65mm · V.Deep
2C
16.50mm · Medium
1X
17.00mm · V.Deep
2¾C
16.40mm · Medium
10½D
15.90mm · Shallow
3B
16.30mm · Deep
8½C
16.10mm · Medium
8¾
16.10mm · V.Deep
8C
16.20mm · Medium
Mega Tone Cornet 1
17.50mm · V.Deep
10½A
15.90mm · V.Deep
10½DW
15.90mm · Shallow
1½B
17.00mm · Medium
11C
15.70mm · Medium
7
16.20mm · V.Deep
Frequently asked questions
Which brand makes better cornet mouthpieces — Bach or Kelly?
Neither brand is universally better. Bach has 94 models and Kelly has 9. 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 Bach and Kelly cornet mouthpieces compare in size?
Bach averages 16.13mm cup diameter with 3.67mm throat. Kelly averages 16.37mm cup diameter with 3.87mm throat.