Bach 1½C vs Conn Harry Glanz 6M
Both mouthpieces share similar core dimensions — the differences are in the details.
Mouthpiece A
Bach 1½C
• Cornet
Cup diameter17.00 mm / 0.6693 in
Cup depthMedium
Rim width—
Throat diameter3.66 mm / 0.1441 in
Backbore—
Finish—
Material—
vs
Mouthpiece B
Conn Harry Glanz 6M
• Cornet
LeadCup diameter—
Cup depthMedium
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
Harry Glanz signature model 6M
Lead/commercial; endorsed by Harry Glanz
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Material
The Bach 1½C is described as unspecified, and the Conn Harry Glanz 6M as Silver-plated brass. Material affects mass, warmth, and how quickly the piece responds.
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.