Bruno Tilz 305-D 5 vs Conn Imp. Precision 4
the Conn Imp. Precision 4 features a deeper cup.
How deep the cup is, from shallow (brighter, easier high register) to deep (darker, fuller sound).
Mouthpiece A
Bruno Tilz 305-D 5
• Trombone
CatalogCup depthMedium
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Conn Imp. Precision 4
• Trombone
OrchestralCup depth
Best suited for
Bass trombone / large bore tenor
Full rich deep tone
Cup Depth
The Conn Imp. Precision 4 has a — cup while the Bruno Tilz 305-D 5 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Which is better?
The Bruno Tilz 305-D 5 is designed for catalog playing, while the Conn Imp. Precision 4 targets orchestral use. Your best choice depends on your musical context.