Bach 6½AL (large shank) vs Marcinkiewicz CH 5J BS
The Marcinkiewicz CH 5J BS has a wider cup diameter, the Marcinkiewicz CH 5J BS has a larger throat opening.
Surface plating or treatment (e.g. silver plate, gold trim). Affects feel, durability, and appearance.
Mouthpiece A
Bach 6½AL (large shank)
• Trombone
Finish—
Best suited for
Orchestral playing — large cup for full, dark tone
High-volume projection — open throat for power
vs
Mouthpiece B
Marcinkiewicz CH 5J BS
• Trombone
Finish—
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.