Curry 7M vs Denis Wick 9BL
The Denis Wick 9BL has a wider cup diameter, the Denis Wick 9BL has a larger throat opening.
The internal diameter of the cup, measured at the widest point inside the rim.
Mouthpiece A
Curry 7M
• Trombone
Cup diameter24.74 mm / 0.9740 in
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Denis Wick 9BL
• Trombone
Cup diameter25.00 mm / 0.9843 in
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Denis Wick 9BL has a cup diameter of 25.00 mm / 0.9843 in compared to 24.74 mm / 0.9740 in on the Curry 7M — a difference of 0.26 mm / 0.0103 in. A wider cup generally produces a fuller, darker tone but requires more air support.
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.