Bach 1B vs Giardinelli 17S
The Bach 1B has a wider cup diameter, the Bach 1B features a deeper cup.
Mouthpiece A
Bach 1B
• Cornet
Cup diameter17.00 mm / 0.6693 in
Cup depthDeep
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
Best suited for
Orchestral playing — large cup for full, dark tone
vs
Mouthpiece B
Giardinelli 17S
• Cornet
Cup diameter15.00 mm / 0.5906 in
Cup depthShallow
Rim width—
Throat diameter—
Backbore—
Finish—
Material—
Best suited for
Lead / commercial — shallow cup for brightness and range
Cup Diameter
The Bach 1B has a cup diameter of 17.00 mm / 0.6693 in compared to 15.00 mm / 0.5906 in on the Giardinelli 17S — a difference of 2.00 mm / 0.0787 in. A wider cup generally produces a fuller, darker tone but requires more air support.
Cup Depth
The Bach 1B has a deep cup while the Giardinelli 17S has a shallow 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.