Bob Reeves 40/C/69 vs Conn Imp. Precision 5
the Bob Reeves 40/C/69 features a deeper cup.
Mouthpiece A
Bob Reeves 40/C/69
• Cornet
Cup diameter15.88 mm / 0.6252 in
Cup depthDeep
Rim width—
Throat diameter—
Backbore69
Finish—
Material—
vs
Mouthpiece B
Conn Imp. Precision 5
• Cornet
LeadCup diameter—
Cup depthShallow
Rim width—
Throat diameter—
Backbore—
Finish—
MaterialSilver-plated brass
Best suited for
Dance band / lead; standard on Conn 6B Victor
Bright tone; excellent in high register
Cup Depth
The Bob Reeves 40/C/69 has a deep cup while the Conn Imp. Precision 5 has a shallow cup. Deeper cups favor a darker, richer sound; shallower cups provide more brightness and easier upper register.
Material
The Bob Reeves 40/C/69 is described as unspecified, and the Conn Imp. Precision 5 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.