Bach vs Yamaha Trombone Mouthpieces
Bach offers 74 trombone mouthpieces (made in United States), while Yamaha has 37 models (made in Japan). On average, Bach cups measure 25.40mm versus 25.69mm for Yamaha. Below we compare both lineups side by side to help you choose the right brand for your playing style.
Bach
Models74
Avg cup25.40mm
Avg throat6.40mm
Common style—
CountryUnited States
vs
Yamaha
Models37
Avg cup25.69mm
Avg throat6.75mm
Common style—
CountryJapan
Bach vs Yamaha — head-to-head comparisons
- Bach 1¼G vs Yamaha SL-48DL
- Bach 1¼G vs Yamaha SL-YEO-S
- Bach 1¼G vs Yamaha SL-48L
- Bach 1¼G vs Yamaha SL-48S-GP
- Bach 6½AL (large shank) vs Yamaha SL-48DL
- Bach 6½AL (large shank) vs Yamaha SL-YEO-S
- Bach 6½AL (large shank) vs Yamaha SL-48L
- Bach 6½AL (large shank) vs Yamaha SL-48S-GP
- Bach 12E vs Yamaha SL-48DL
- Bach 12E vs Yamaha SL-YEO-S
- Bach 12E vs Yamaha SL-48L
- Bach 12E vs Yamaha SL-48S-GP
All models
Bach (74)
1¼G
27.50mm · V.Deep
6½AL (large shank)
25.40mm · Deep
12E
24.50mm · Shallow
12C
24.50mm · Shallow
5GS (large shank)
25.50mm · Deep
6½A (small shank)
25.40mm · Deep
6½AL (small shank)
25.40mm · Deep
4G
26.00mm · V.Deep
5G (large shank)
25.50mm · V.Deep
Mega Tone Trombone 6½A
25.40mm · Deep
Mega Tone Trombone 6½AL
25.40mm · Deep
11C
24.70mm · Shallow
14½D
24.50mm · Shallow
15D
24.40mm · Shallow
5GS (small shank)
25.50mm · Deep
Mega Tone Trombone 5
25.50mm · Medium
Mega Tone Trombone 5GS
25.50mm · Deep
1¼GM
27.50mm · V.Deep
15E
24.40mm · Shallow
6½AM (small shank)
25.40mm · Deep
Yamaha (37)
SL-48DL
25.25mm · Deep
SL-YEO-S
28.72mm · Deep
SL-48L
25.25mm · Medium
SL-48S-GP
25.25mm · Medium
SL-48DS
25.25mm · Deep
SL-48L-GP
25.25mm · Medium
SL-51BL
25.23mm · Shallow
SL-53L
25.91mm · Medium
SL-46BS
24.58mm · Shallow
SL-51BS
25.23mm · Shallow
BL-60BL
27.83mm · Shallow
SL-45C2S-GP
24.26mm · Medium
SL-46C2S
24.59mm · Medium
SL-52L
25.65mm · Medium
SL-YEO-GP
28.72mm · Deep
BL-58L
26.84mm · Medium
BL-60L
28.25mm · Medium
SL-47L
24.98mm · Medium
SL-48AS
25.25mm · V.Shallow
SL-48S
25.25mm · Medium
Frequently asked questions
Which brand makes better trombone mouthpieces — Bach or Yamaha?
Neither brand is universally better. Bach has 74 models and Yamaha has 37. 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 Yamaha trombone mouthpieces compare in size?
Bach averages 25.40mm cup diameter with 6.40mm throat. Yamaha averages 25.69mm cup diameter with 6.75mm throat.