Bruno Tilz 305-6 1/2 ALG vs Bruno Tilz 306-5 GS
the Bruno Tilz 305-6 1/2 ALG features a deeper cup, the Bruno Tilz 306-5 GS has a larger throat opening.
The taper behind the throat leading to the shank. Affects projection and tone character.
Mouthpiece A
Bruno Tilz 305-6 1/2 ALG
• Trombone
CatalogBackbore—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Bruno Tilz 306-5 GS
• Trombone
CatalogBackbore—
Best suited for
High-volume projection — open throat for power
Which is better?
Both mouthpieces are categorized as "Catalog" — the physical dimensions above will determine which suits your embouchure and playing style better.