Conn Harry Glanz 7M vs Kelly 7C
Both mouthpieces share similar core dimensions — the differences are in the details.
Mouthpiece A
Conn Harry Glanz 7M
• Cornet
LeadCup diameter—
Cup depthMedium
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
Harry Glanz signature model 7M
Lead/commercial; endorsed by Harry Glanz
vs
Mouthpiece B
Kelly 7C
• Cornet
GeneralCup diameter16.51 mm / 0.6500 in
Cup depthMedium
Rim width—
Throat diameter3.66 mm / 0.1441 in
BackboreS
Finish—
MaterialLexan polycarbonate
Best suited for
All-round versatile — balanced cup for general playing
Beginner / intermediate
Cup Depth
Both mouthpieces share a medium cup depth, so the sound character from depth alone will be very similar.
Material
The Conn Harry Glanz 7M is described as Silver-plated brass, and the Kelly 7C as Lexan polycarbonate. Material affects mass, warmth, and how quickly the piece responds.
Which is better?
The Conn Harry Glanz 7M is designed for lead playing, while the Kelly 7C targets general use. Your best choice depends on your musical context.