Curry 4C vs Curry 5C
The Curry 4C has a wider cup diameter.
Mouthpiece A
Curry 4C
• Trombone
Cup diameter25.73 mm / 1.0130 in
Cup depthMedium
Rim width—
Throat diameter5.92 mm / 0.2330 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Curry 5C
• Trombone
Cup diameter25.55 mm / 1.0060 in
Cup depthMedium
Rim width—
Throat diameter5.92 mm / 0.2330 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Curry 4C has a cup diameter of 25.73 mm / 1.0130 in compared to 25.55 mm / 1.0060 in on the Curry 5C — a difference of 0.18 mm / 0.0070 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Throat Diameter
Throat diameters are essentially identical at 5.92 mm / 0.2330 in, so resistance feel will be comparable.
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.