Bach 7 vs Schilke 14A4
The Schilke 14A4 has a wider cup diameter, the Bach 7 features a deeper cup.
Mouthpiece A
Bach 7
• Trumpet
Cup diameter16.20 mm
Cup depthVery deep
Rim width—
Throat diameter3.66 mm
Backbore—
Finish—
Material—
vs
Mouthpiece B
Schilke 14A4
• Trumpet
Cup diameter17.09 mm
Cup depthMedium
Rim width—
Throat diameter3.66 mm
Backbore27
Finish—
Material—
Cup Diameter
The Schilke 14A4 has a cup diameter of 17.09 mm compared to 16.20 mm on the Bach 7 — a difference of +0.89 mm. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 7 has a very deep cup while the Schilke 14A4 has a medium cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Throat Diameter
Throat diameters are essentially identical at 3.66 mm, 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.