Curry 3 C. vs GR Technologies 65C**
The Curry 3 C. has a wider cup diameter, the GR Technologies 65C** features a deeper cup.
Mouthpiece A
Curry 3 C.
• Trumpet
Cup diameter16.89 mm / 0.6650 in
Cup depthMedium
Rim width—
Throat diameter3.70 mm / 0.1455 in
Backbore—
Finish—
Material—
vs
Mouthpiece B
GR Technologies 65C**
• Trumpet
Cup diameter16.50 mm / 0.6496 in
Cup depthDeep
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Cup Diameter
The Curry 3 C. has a cup diameter of 16.89 mm / 0.6650 in compared to 16.50 mm / 0.6496 in on the GR Technologies 65C** — a difference of 0.39 mm / 0.0154 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The GR Technologies 65C** has a deep cup while the Curry 3 C. has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
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.