Bach 12 vs Curry 7
The Curry 7 has a wider cup diameter.
Mouthpiece A
Bach 12
• French Horn
Cup diameter16.50 mm / 0.6496 in
Cup depthMedium
Rim width—
Throat diameter4.50 mm / 0.1772 in
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
High-volume projection — open throat for power
vs
Mouthpiece B
Curry 7
• French Horn
Cup diameter17.02 mm / 0.6700 in
Cup depthMedium
Rim width—
Throat diameter4.50 mm / 0.1770 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
Cup Diameter
The Curry 7 has a cup diameter of 17.02 mm / 0.6700 in compared to 16.50 mm / 0.6496 in on the Bach 12 — a difference of 0.52 mm / 0.0204 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 4.50 mm / 0.1772 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.