Bach 5GB (small shank) vs Denis Wick SM4M
The Denis Wick SM4M has a wider cup diameter, the Denis Wick SM4M has a larger throat opening.
The width of the rim surface that contacts the lips. Wider rims improve endurance; narrower rims improve flexibility.
Mouthpiece A
Bach 5GB (small shank)
• Baritone / Euphonium
Rim width—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Denis Wick SM4M
• Baritone / Euphonium
Rim width6.72 mm / 0.2646 in
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
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.