Bob Reeves 42/ES/69 vs Bob Reeves 42/ES/s
Both mouthpieces share similar core dimensions — the differences are in the details.
Mouthpiece A
Bob Reeves 42/ES/69
• Cornet
Cup diameter16.67 mm / 0.6563 in
Cup depthVery shallow
Rim width—
Throat diameter—
Backbore69
Finish—
Material—
vs
Mouthpiece B
Bob Reeves 42/ES/s
• Cornet
Cup diameter16.67 mm / 0.6563 in
Cup depthVery shallow
Rim width—
Throat diameter—
Backbores
Finish—
Material—
Cup Diameter
Both mouthpieces have virtually identical cup diameters at 16.67 mm / 0.6563 in.
Cup Depth
Both mouthpieces share a very shallow cup depth, so the sound character from depth alone will be very similar.
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.