Bach vs Kelly Tuba Mouthpieces
Bach offers 14 tuba mouthpieces (made in United States), while Kelly has 20 models (made in United States). On average, Bach cups measure 31.66mm versus 32.42mm for Kelly. Below we compare both lineups side by side to help you choose the right brand for your playing style.
Bach
Models14
Avg cup31.66mm
Avg throat8.67mm
Common style—
CountryUnited States
vs
Kelly
Models20
Avg cup32.42mm
Avg throat—
Common styleGeneral
CountryUnited States
Bach vs Kelly — head-to-head comparisons
- Bach 18 vs Kelly 18
- Bach 18 vs Kelly 24AW-SS
- Bach 18 vs Kelly 25
- Bach 18 vs Kelly 50-SS
- Bach 24W vs Kelly 18
- Bach 24W vs Kelly 24AW-SS
- Bach 24W vs Kelly 25
- Bach 24W vs Kelly 50-SS
- Bach Mega Tone Tuba 22 vs Kelly 18
- Bach Mega Tone Tuba 22 vs Kelly 24AW-SS
- Bach Mega Tone Tuba 22 vs Kelly 25
- Bach Mega Tone Tuba 22 vs Kelly 50-SS
All models
Bach (14)
18
32.10mm · Medium
24W
31.25mm · Medium
Mega Tone Tuba 22
31.60mm · Medium
12
32.75mm · Medium
25
30.60mm · Medium
Mega Tone Tuba 24AW
31.25mm · V.Deep
24AW
31.25mm · V.Deep
Mega Tone Tuba 18
32.10mm · Medium
7
33.25mm · Medium
22
31.60mm · Medium
30E
30.00mm · Shallow
32E
29.50mm · Shallow
Mega Tone Tuba 7
33.25mm · Medium
Mega Tone Tuba 12
32.75mm · Medium
Kelly (20)
18
32.77mm · — · General
24AW-SS
31.24mm · V.Deep · General
25
30.99mm · Medium · General
50-SS
33.27mm · — · General
JACOBS-SS
31.75mm · Medium · Orchestral
KELLYBERG-SP
33.02mm · — · Orchestral
KM-50
33.27mm · — · Orchestral
50-EU-SS
33.27mm · — · General
KELLYBERG
33.02mm · — · Orchestral
KELLYBERG-TS
33.02mm · — · Orchestral
POLKA-SS
33.27mm · — · General
X-SMALL
30.73mm · Shallow · Student
24AW
31.24mm · V.Deep · General
50-KS-SS
33.27mm · — · General
KELLYBERG-EU-SS
33.02mm · — · Orchestral
KELLYBERG-KS-SS
33.02mm · — · Orchestral
KELLYBERG-SS
33.02mm · — · Orchestral
X-SMALL-SS
30.73mm · Shallow · Student
X-SMALL-TS
30.73mm · Shallow · Student
XXL-SS
33.78mm · — · Contrabass
Frequently asked questions
Which brand makes better tuba mouthpieces — Bach or Kelly?
Neither brand is universally better. Bach has 14 models and Kelly has 20. 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 tuba mouthpieces compare in size?
Bach averages 31.66mm cup diameter with 8.67mm throat. Kelly averages 32.42mm cup diameter with N/Amm throat.