Vincent Bach was a rare combination of artist and engineer. He was constantly changing his mouthpiece designs until the mid-1960’s when they became more standardized.
- 1C - Medium wide. Large diameter, medium cup - good for all-around use.
- 1 1/4C - Medium wide. Large cup for powerful trumpeters. Compact tone of great carrying power.
- 1 1/2C - Medium wide, not too sharp. Large diameter, medium cup - good for all-around use.
- 3C - Medium wide. Fairly large cup, good for all-around use.
- 3D - Medium wide. Fairly large, medium shallow cup produces a more brilliant tone. Facilitates high register.
- 5C - Medium wide, well rounded toward the inside and outside, fairly flat. For players with a strong embouchure who do not like a sharp edge. The tone is lively and rich.
- 7C - Medium wide, lowered toward the outside. Medium sharp inside. Well-rounded edge with a perfect grip. Probably the most widely used model in the world. Its brilliant tone is preferred by school musicians and by artists.
- 7D - Medium wide, lowered toward the outside. Similar to No. 7C. A shallower cup than No. 7C, designed principally for D trumpet, but used successfully where great brilliance and easy high register are required.