Bach 10½C vs Monette Vintage B4L S1
The Monette Vintage B4L S1 has a wider cup diameter, the Bach 10½C features a deeper cup.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Bach 10½C
• Trumpet
Rim width—
vs
Mouthpiece B
Monette Vintage B4L S1
• Trumpet
Rim width—
Best suited for
Lead / commercial — shallow cup for brightness and range
Which is better?
Neither mouthpiece clearly dominates the other — the right choice depends on your embouchure, playing style, and the sound you're after. Try both if possible.