Bach 7A Flugel vs Bach 7C Flugel
the Bach 7A Flugel features a deeper cup.
Mouthpiece A
Bach 7A Flugel
• Flugelhorn
Cup diameter16.20 mm / 0.6378 in
Cup depthVery deep
Rim width—
Throat diameter3.99 mm / 0.1571 in
Backbore—
Finish—
Material—
Best suited for
High-volume projection — open throat for power
vs
Mouthpiece B
Bach 7C Flugel
• Flugelhorn
Cup diameter16.20 mm / 0.6378 in
Cup depthMedium
Rim width—
Throat diameter3.99 mm / 0.1571 in
Backbore—
Finish—
Material—
Best suited for
All-round versatile — balanced cup for general playing
High-volume projection — open throat for power
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 16.20 mm / 0.6378 in.
Cup Depth
The Bach 7A Flugel has a very deep cup while the Bach 7C Flugel 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 3.99 mm / 0.1571 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.