Bach 25 vs Conn Precision 3
the Conn Precision 3 features a deeper cup.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Bach 25
• Tuba
Cup depthMedium
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Conn Precision 3
• Tuba
GeneralCup depth
Best suited for
Large Eb bass
Full round tone in all registers
Cup Depth
The Conn Precision 3 has a — cup while the Bach 25 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
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.